Home / 1,092,102,004.90-1,638,153,007.35-724,769,985.70

Finding the Fourth Proportional to 1,092,102,004.90, 1,638,153,007.35 and 724,769,985.70

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Solution

The fourth proportional to 1,092,102,004.90, 1,638,153,007.35 and 724,769,985.70 is: 1,087,154,978.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,102,004.90 : 1,638,153,007.35 = 724,769,985.70 : x
  2. Step 2: Convert to fraction form
    1,092,102,004.90/1,638,153,007.35 = 724,769,985.70/x
  3. Step 3: Cross multiply
    1,092,102,004.90x = 1,638,153,007.35 × 724,769,985.70
  4. Step 4: Simplify right side
    1,092,102,004.90x = 1,187,284,131,711,471,616
  5. Step 5: Solve for x
    x = 1,187,284,131,711,471,616/1,092,102,004.90
  6. Step 6: Final answer
    x = 1,087,154,978.55

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Double scale
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1.5x scale

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.