Home / 191,648,329.20-287,472,493.80-76,575,970.80

Finding the Fourth Proportional to 191,648,329.20, 287,472,493.80 and 76,575,970.80

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Solution

The fourth proportional to 191,648,329.20, 287,472,493.80 and 76,575,970.80 is: 114,863,956.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,648,329.20 : 287,472,493.80 = 76,575,970.80 : x
  2. Step 2: Convert to fraction form
    191,648,329.20/287,472,493.80 = 76,575,970.80/x
  3. Step 3: Cross multiply
    191,648,329.20x = 287,472,493.80 × 76,575,970.80
  4. Step 4: Simplify right side
    191,648,329.20x = 22,013,485,291,031,980
  5. Step 5: Solve for x
    x = 22,013,485,291,031,980/191,648,329.20
  6. Step 6: Final answer
    x = 114,863,956.20

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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.