Home / 1,080,159,864.23-1,490,860,412.96-656,683,542.15

Finding the Fourth Proportional to 1,080,159,864.23, 1,490,860,412.96 and 656,683,542.15

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Solution

The fourth proportional to 1,080,159,864.23, 1,490,860,412.96 and 656,683,542.15 is: 906,369,074.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,159,864.23 : 1,490,860,412.96 = 656,683,542.15 : x
  2. Step 2: Convert to fraction form
    1,080,159,864.23/1,490,860,412.96 = 656,683,542.15/x
  3. Step 3: Cross multiply
    1,080,159,864.23x = 1,490,860,412.96 × 656,683,542.15
  4. Step 4: Simplify right side
    1,080,159,864.23x = 979,023,496,833,784,576
  5. Step 5: Solve for x
    x = 979,023,496,833,784,576/1,080,159,864.23
  6. Step 6: Final answer
    x = 906,369,074.85

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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.