Home / 191,308,330.91-287,008,031.12-61,915,941.20

Finding the Fourth Proportional to 191,308,330.91, 287,008,031.12 and 61,915,941.20

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Solution

The fourth proportional to 191,308,330.91, 287,008,031.12 and 61,915,941.20 is: 92,888,648.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,308,330.91 : 287,008,031.12 = 61,915,941.20 : x
  2. Step 2: Convert to fraction form
    191,308,330.91/287,008,031.12 = 61,915,941.20/x
  3. Step 3: Cross multiply
    191,308,330.91x = 287,008,031.12 × 61,915,941.20
  4. Step 4: Simplify right side
    191,308,330.91x = 17,770,372,377,009,070
  5. Step 5: Solve for x
    x = 17,770,372,377,009,070/191,308,330.91
  6. Step 6: Final answer
    x = 92,888,648.88

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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.