Home / 138,921,795.80-208,329,724.91-46,780,795.11

Finding the Fourth Proportional to 138,921,795.80, 208,329,724.91 and 46,780,795.11

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Solution

The fourth proportional to 138,921,795.80, 208,329,724.91 and 46,780,795.11 is: 70,153,355.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,921,795.80 : 208,329,724.91 = 46,780,795.11 : x
  2. Step 2: Convert to fraction form
    138,921,795.80/208,329,724.91 = 46,780,795.11/x
  3. Step 3: Cross multiply
    138,921,795.80x = 208,329,724.91 × 46,780,795.11
  4. Step 4: Simplify right side
    138,921,795.80x = 9,745,830,175,477,674
  5. Step 5: Solve for x
    x = 9,745,830,175,477,674/138,921,795.80
  6. Step 6: Final answer
    x = 70,153,355.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.