Home / 1,140,554,267.52-1,573,695,120.09-645,516,961.44

Finding the Fourth Proportional to 1,140,554,267.52, 1,573,695,120.09 and 645,516,961.44

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Solution

The fourth proportional to 1,140,554,267.52, 1,573,695,120.09 and 645,516,961.44 is: 890,660,726.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,554,267.52 : 1,573,695,120.09 = 645,516,961.44 : x
  2. Step 2: Convert to fraction form
    1,140,554,267.52/1,573,695,120.09 = 645,516,961.44/x
  3. Step 3: Cross multiply
    1,140,554,267.52x = 1,573,695,120.09 × 645,516,961.44
  4. Step 4: Simplify right side
    1,140,554,267.52x = 1,015,846,892,153,452,672
  5. Step 5: Solve for x
    x = 1,015,846,892,153,452,672/1,140,554,267.52
  6. Step 6: Final answer
    x = 890,660,726.18

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.