Home / 1,287,892,126.50-1,931,428,648.02-414,290,145.96

Finding the Fourth Proportional to 1,287,892,126.50, 1,931,428,648.02 and 414,290,145.96

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Solution

The fourth proportional to 1,287,892,126.50, 1,931,428,648.02 and 414,290,145.96 is: 621,303,477.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,892,126.50 : 1,931,428,648.02 = 414,290,145.96 : x
  2. Step 2: Convert to fraction form
    1,287,892,126.50/1,931,428,648.02 = 414,290,145.96/x
  3. Step 3: Cross multiply
    1,287,892,126.50x = 1,931,428,648.02 × 414,290,145.96
  4. Step 4: Simplify right side
    1,287,892,126.50x = 800,171,856,501,105,536
  5. Step 5: Solve for x
    x = 800,171,856,501,105,536/1,287,892,126.50
  6. Step 6: Final answer
    x = 621,303,477.24

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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.