Home / 12,819,482,237.52-17,690,989,359.99-7,103,862,136.47

Finding the Fourth Proportional to 12,819,482,237.52, 17,690,989,359.99 and 7,103,862,136.47

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Solution

The fourth proportional to 12,819,482,237.52, 17,690,989,359.99 and 7,103,862,136.47 is: 9,803,387,308.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819,482,237.52 : 17,690,989,359.99 = 7,103,862,136.47 : x
  2. Step 2: Convert to fraction form
    12,819,482,237.52/17,690,989,359.99 = 7,103,862,136.47/x
  3. Step 3: Cross multiply
    12,819,482,237.52x = 17,690,989,359.99 × 7,103,862,136.47
  4. Step 4: Simplify right side
    12,819,482,237.52x = 125,674,349,471,126,618,112
  5. Step 5: Solve for x
    x = 125,674,349,471,126,618,112/12,819,482,237.52
  6. Step 6: Final answer
    x = 9,803,387,308.68

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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.