Home / 889,146,159.90-1,227,023,142.78-487,196,036.16

Finding the Fourth Proportional to 889,146,159.90, 1,227,023,142.78 and 487,196,036.16

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Solution

The fourth proportional to 889,146,159.90, 1,227,023,142.78 and 487,196,036.16 is: 672,331,320.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,146,159.90 : 1,227,023,142.78 = 487,196,036.16 : x
  2. Step 2: Convert to fraction form
    889,146,159.90/1,227,023,142.78 = 487,196,036.16/x
  3. Step 3: Cross multiply
    889,146,159.90x = 1,227,023,142.78 × 487,196,036.16
  4. Step 4: Simplify right side
    889,146,159.90x = 597,800,811,439,001,728
  5. Step 5: Solve for x
    x = 597,800,811,439,001,728/889,146,159.90
  6. Step 6: Final answer
    x = 672,331,320.09

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.