Home / 438,632,128.38-657,943,120.16-106,641,018.76

Finding the Fourth Proportional to 438,632,128.38, 657,943,120.16 and 106,641,018.76

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Solution

The fourth proportional to 438,632,128.38, 657,943,120.16 and 106,641,018.76 is: 159,960,294.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,632,128.38 : 657,943,120.16 = 106,641,018.76 : x
  2. Step 2: Convert to fraction form
    438,632,128.38/657,943,120.16 = 106,641,018.76/x
  3. Step 3: Cross multiply
    438,632,128.38x = 657,943,120.16 × 106,641,018.76
  4. Step 4: Simplify right side
    438,632,128.38x = 70,163,724,619,995,496
  5. Step 5: Solve for x
    x = 70,163,724,619,995,496/438,632,128.38
  6. Step 6: Final answer
    x = 159,960,294.93

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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.