Home / 191,736,584.70-287,604,877.05-76,738,875.90

Finding the Fourth Proportional to 191,736,584.70, 287,604,877.05 and 76,738,875.90

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Solution

The fourth proportional to 191,736,584.70, 287,604,877.05 and 76,738,875.90 is: 115,108,313.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,736,584.70 : 287,604,877.05 = 76,738,875.90 : x
  2. Step 2: Convert to fraction form
    191,736,584.70/287,604,877.05 = 76,738,875.90/x
  3. Step 3: Cross multiply
    191,736,584.70x = 287,604,877.05 × 76,738,875.90
  4. Step 4: Simplify right side
    191,736,584.70x = 22,070,474,968,174,712
  5. Step 5: Solve for x
    x = 22,070,474,968,174,712/191,736,584.70
  6. Step 6: Final answer
    x = 115,108,313.85

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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.