Home / 57,081,985.95-78,773,141.15-30,976,503.77

Finding the Fourth Proportional to 57,081,985.95, 78,773,141.15 and 30,976,503.77

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Solution

The fourth proportional to 57,081,985.95, 78,773,141.15 and 30,976,503.77 is: 42,747,575.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,081,985.95 : 78,773,141.15 = 30,976,503.77 : x
  2. Step 2: Convert to fraction form
    57,081,985.95/78,773,141.15 = 30,976,503.77/x
  3. Step 3: Cross multiply
    57,081,985.95x = 78,773,141.15 × 30,976,503.77
  4. Step 4: Simplify right side
    57,081,985.95x = 2,440,116,503,807,717.50
  5. Step 5: Solve for x
    x = 2,440,116,503,807,717.50/57,081,985.95
  6. Step 6: Final answer
    x = 42,747,575.50

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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.