Home / 438,781,382.39-657,980,731.13-165,960,830.63

Finding the Fourth Proportional to 438,781,382.39, 657,980,731.13 and 165,960,830.63

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Solution

The fourth proportional to 438,781,382.39, 657,980,731.13 and 165,960,830.63 is: 248,868,874.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,781,382.39 : 657,980,731.13 = 165,960,830.63 : x
  2. Step 2: Convert to fraction form
    438,781,382.39/657,980,731.13 = 165,960,830.63/x
  3. Step 3: Cross multiply
    438,781,382.39x = 657,980,731.13 × 165,960,830.63
  4. Step 4: Simplify right side
    438,781,382.39x = 109,199,028,672,749,792
  5. Step 5: Solve for x
    x = 109,199,028,672,749,792/438,781,382.39
  6. Step 6: Final answer
    x = 248,868,874.24

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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.