Home / 12,710,129,345.10-19,065,194,017.65-3,985,979,892.30

Finding the Fourth Proportional to 12,710,129,345.10, 19,065,194,017.65 and 3,985,979,892.30

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Solution

The fourth proportional to 12,710,129,345.10, 19,065,194,017.65 and 3,985,979,892.30 is: 5,978,969,838.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,710,129,345.10 : 19,065,194,017.65 = 3,985,979,892.30 : x
  2. Step 2: Convert to fraction form
    12,710,129,345.10/19,065,194,017.65 = 3,985,979,892.30/x
  3. Step 3: Cross multiply
    12,710,129,345.10x = 19,065,194,017.65 × 3,985,979,892.30
  4. Step 4: Simplify right side
    12,710,129,345.10x = 75,993,479,997,151,166,464
  5. Step 5: Solve for x
    x = 75,993,479,997,151,166,464/12,710,129,345.10
  6. Step 6: Final answer
    x = 5,978,969,838.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.