Home / 89,712,216-123,802,907.90-48,459,108.78

Finding the Fourth Proportional to 89,712,216, 123,802,907.90 and 48,459,108.78

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Solution

The fourth proportional to 89,712,216, 123,802,907.90 and 48,459,108.78 is: 66,873,597.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,712,216 : 123,802,907.90 = 48,459,108.78 : x
  2. Step 2: Convert to fraction form
    89,712,216/123,802,907.90 = 48,459,108.78/x
  3. Step 3: Cross multiply
    89,712,216x = 123,802,907.90 × 48,459,108.78
  4. Step 4: Simplify right side
    89,712,216x = 5,999,378,580,964,126
  5. Step 5: Solve for x
    x = 5,999,378,580,964,126/89,712,216
  6. Step 6: Final answer
    x = 66,873,597.02

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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.