Home / 1,126,872,809.10-1,690,309,213.65-514,652,777.10

Finding the Fourth Proportional to 1,126,872,809.10, 1,690,309,213.65 and 514,652,777.10

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Solution

The fourth proportional to 1,126,872,809.10, 1,690,309,213.65 and 514,652,777.10 is: 771,979,165.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,872,809.10 : 1,690,309,213.65 = 514,652,777.10 : x
  2. Step 2: Convert to fraction form
    1,126,872,809.10/1,690,309,213.65 = 514,652,777.10/x
  3. Step 3: Cross multiply
    1,126,872,809.10x = 1,690,309,213.65 × 514,652,777.10
  4. Step 4: Simplify right side
    1,126,872,809.10x = 869,922,330,962,689,792
  5. Step 5: Solve for x
    x = 869,922,330,962,689,792/1,126,872,809.10
  6. Step 6: Final answer
    x = 771,979,165.65

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Double scale
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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.