Home / 129,952,734.93-179,329,635.60-77,710,641.21

Finding the Fourth Proportional to 129,952,734.93, 179,329,635.60 and 77,710,641.21

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Solution

The fourth proportional to 129,952,734.93, 179,329,635.60 and 77,710,641.21 is: 107,237,612.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,952,734.93 : 179,329,635.60 = 77,710,641.21 : x
  2. Step 2: Convert to fraction form
    129,952,734.93/179,329,635.60 = 77,710,641.21/x
  3. Step 3: Cross multiply
    129,952,734.93x = 179,329,635.60 × 77,710,641.21
  4. Step 4: Simplify right side
    129,952,734.93x = 13,935,820,970,431,642
  5. Step 5: Solve for x
    x = 13,935,820,970,431,642/129,952,734.93
  6. Step 6: Final answer
    x = 107,237,612.03

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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.