Home / 30,715,356.67-42,386,913.15-16,776,708.87

Finding the Fourth Proportional to 30,715,356.67, 42,386,913.15 and 16,776,708.87

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Solution

The fourth proportional to 30,715,356.67, 42,386,913.15 and 16,776,708.87 is: 23,151,705.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,715,356.67 : 42,386,913.15 = 16,776,708.87 : x
  2. Step 2: Convert to fraction form
    30,715,356.67/42,386,913.15 = 16,776,708.87/x
  3. Step 3: Cross multiply
    30,715,356.67x = 42,386,913.15 × 16,776,708.87
  4. Step 4: Simplify right side
    30,715,356.67x = 711,112,901,625,673.88
  5. Step 5: Solve for x
    x = 711,112,901,625,673.88/30,715,356.67
  6. Step 6: Final answer
    x = 23,151,705.82

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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.