Home / 119,316,871.64-164,732,929.71-81,702,972.11

Finding the Fourth Proportional to 119,316,871.64, 164,732,929.71 and 81,702,972.11

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Solution

The fourth proportional to 119,316,871.64, 164,732,929.71 and 81,702,972.11 is: 112,801,901.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,316,871.64 : 164,732,929.71 = 81,702,972.11 : x
  2. Step 2: Convert to fraction form
    119,316,871.64/164,732,929.71 = 81,702,972.11/x
  3. Step 3: Cross multiply
    119,316,871.64x = 164,732,929.71 × 81,702,972.11
  4. Step 4: Simplify right side
    119,316,871.64x = 13,459,169,961,694,720
  5. Step 5: Solve for x
    x = 13,459,169,961,694,720/119,316,871.64
  6. Step 6: Final answer
    x = 112,801,901.16

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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.