Home / 912,815,593.60-1,369,280,668-257,817,906.40

Finding the Fourth Proportional to 912,815,593.60, 1,369,280,668 and 257,817,906.40

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Solution

The fourth proportional to 912,815,593.60, 1,369,280,668 and 257,817,906.40 is: 386,743,037.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,815,593.60 : 1,369,280,668 = 257,817,906.40 : x
  2. Step 2: Convert to fraction form
    912,815,593.60/1,369,280,668 = 257,817,906.40/x
  3. Step 3: Cross multiply
    912,815,593.60x = 1,369,280,668 × 257,817,906.40
  4. Step 4: Simplify right side
    912,815,593.60x = 353,025,075,097,753,472
  5. Step 5: Solve for x
    x = 353,025,075,097,753,472/912,815,593.60
  6. Step 6: Final answer
    x = 386,743,037.23

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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.