Home / 1,011,908,455.20-1,396,437,418-588,623,681.24

Finding the Fourth Proportional to 1,011,908,455.20, 1,396,437,418 and 588,623,681.24

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Solution

The fourth proportional to 1,011,908,455.20, 1,396,437,418 and 588,623,681.24 is: 812,302,861.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,908,455.20 : 1,396,437,418 = 588,623,681.24 : x
  2. Step 2: Convert to fraction form
    1,011,908,455.20/1,396,437,418 = 588,623,681.24/x
  3. Step 3: Cross multiply
    1,011,908,455.20x = 1,396,437,418 × 588,623,681.24
  4. Step 4: Simplify right side
    1,011,908,455.20x = 821,976,133,604,440,704
  5. Step 5: Solve for x
    x = 821,976,133,604,440,704/1,011,908,455.20
  6. Step 6: Final answer
    x = 812,302,861.37

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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.