Home / 257,830,572.50-386,756,531.31-76,077,750.50

Finding the Fourth Proportional to 257,830,572.50, 386,756,531.31 and 76,077,750.50

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Solution

The fourth proportional to 257,830,572.50, 386,756,531.31 and 76,077,750.50 is: 114,119,774.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,830,572.50 : 386,756,531.31 = 76,077,750.50 : x
  2. Step 2: Convert to fraction form
    257,830,572.50/386,756,531.31 = 76,077,750.50/x
  3. Step 3: Cross multiply
    257,830,572.50x = 386,756,531.31 × 76,077,750.50
  4. Step 4: Simplify right side
    257,830,572.50x = 29,423,566,893,247,620
  5. Step 5: Solve for x
    x = 29,423,566,893,247,620/257,830,572.50
  6. Step 6: Final answer
    x = 114,119,774.89

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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.