Home / 134,637,018.28-185,791,077.77-78,117,385.70

Finding the Fourth Proportional to 134,637,018.28, 185,791,077.77 and 78,117,385.70

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Solution

The fourth proportional to 134,637,018.28, 185,791,077.77 and 78,117,385.70 is: 107,797,346.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,637,018.28 : 185,791,077.77 = 78,117,385.70 : x
  2. Step 2: Convert to fraction form
    134,637,018.28/185,791,077.77 = 78,117,385.70/x
  3. Step 3: Cross multiply
    134,637,018.28x = 185,791,077.77 × 78,117,385.70
  4. Step 4: Simplify right side
    134,637,018.28x = 14,513,513,281,851,676
  5. Step 5: Solve for x
    x = 14,513,513,281,851,676/134,637,018.28
  6. Step 6: Final answer
    x = 107,797,346.28

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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.