Home / 865,442,900.12-1,298,285,597.45-283,222,909.40

Finding the Fourth Proportional to 865,442,900.12, 1,298,285,597.45 and 283,222,909.40

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Solution

The fourth proportional to 865,442,900.12, 1,298,285,597.45 and 283,222,909.40 is: 424,874,043.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,442,900.12 : 1,298,285,597.45 = 283,222,909.40 : x
  2. Step 2: Convert to fraction form
    865,442,900.12/1,298,285,597.45 = 283,222,909.40/x
  3. Step 3: Cross multiply
    865,442,900.12x = 1,298,285,597.45 × 283,222,909.40
  4. Step 4: Simplify right side
    865,442,900.12x = 367,704,224,136,122,880
  5. Step 5: Solve for x
    x = 367,704,224,136,122,880/865,442,900.12
  6. Step 6: Final answer
    x = 424,874,043.21

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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.