Home / 76,360,473-105,377,470.02-42,021,657

Finding the Fourth Proportional to 76,360,473, 105,377,470.02 and 42,021,657

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Solution

The fourth proportional to 76,360,473, 105,377,470.02 and 42,021,657 is: 57,989,896.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,360,473 : 105,377,470.02 = 42,021,657 : x
  2. Step 2: Convert to fraction form
    76,360,473/105,377,470.02 = 42,021,657/x
  3. Step 3: Cross multiply
    76,360,473x = 105,377,470.02 × 42,021,657
  4. Step 4: Simplify right side
    76,360,473x = 4,428,135,900,708,223
  5. Step 5: Solve for x
    x = 4,428,135,900,708,223/76,360,473
  6. Step 6: Final answer
    x = 57,989,896.17

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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.