Home / 521,105,631.19-719,134,031.50-282,950,680.61

Finding the Fourth Proportional to 521,105,631.19, 719,134,031.50 and 282,950,680.61

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Solution

The fourth proportional to 521,105,631.19, 719,134,031.50 and 282,950,680.61 is: 390,476,424.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,105,631.19 : 719,134,031.50 = 282,950,680.61 : x
  2. Step 2: Convert to fraction form
    521,105,631.19/719,134,031.50 = 282,950,680.61/x
  3. Step 3: Cross multiply
    521,105,631.19x = 719,134,031.50 × 282,950,680.61
  4. Step 4: Simplify right side
    521,105,631.19x = 203,479,463,663,828,640
  5. Step 5: Solve for x
    x = 203,479,463,663,828,640/521,105,631.19
  6. Step 6: Final answer
    x = 390,476,424.52

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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.