Home / 134,636,988.34-185,791,036.54-78,117,355.78

Finding the Fourth Proportional to 134,636,988.34, 185,791,036.54 and 78,117,355.78

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Solution

The fourth proportional to 134,636,988.34, 185,791,036.54 and 78,117,355.78 is: 107,797,305.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,636,988.34 : 185,791,036.54 = 78,117,355.78 : x
  2. Step 2: Convert to fraction form
    134,636,988.34/185,791,036.54 = 78,117,355.78/x
  3. Step 3: Cross multiply
    134,636,988.34x = 185,791,036.54 × 78,117,355.78
  4. Step 4: Simplify right side
    134,636,988.34x = 14,513,504,502,130,160
  5. Step 5: Solve for x
    x = 14,513,504,502,130,160/134,636,988.34
  6. Step 6: Final answer
    x = 107,797,305.04

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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.