Home / 932,497,010.78-1,286,839,212.26-509,110,658.17

Finding the Fourth Proportional to 932,497,010.78, 1,286,839,212.26 and 509,110,658.17

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Solution

The fourth proportional to 932,497,010.78, 1,286,839,212.26 and 509,110,658.17 is: 702,569,070.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,497,010.78 : 1,286,839,212.26 = 509,110,658.17 : x
  2. Step 2: Convert to fraction form
    932,497,010.78/1,286,839,212.26 = 509,110,658.17/x
  3. Step 3: Cross multiply
    932,497,010.78x = 1,286,839,212.26 × 509,110,658.17
  4. Step 4: Simplify right side
    932,497,010.78x = 655,143,558,306,890,368
  5. Step 5: Solve for x
    x = 655,143,558,306,890,368/932,497,010.78
  6. Step 6: Final answer
    x = 702,569,070.72

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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.