Home / 372,078,509.38-558,117,763.89-138,927,429.25

Finding the Fourth Proportional to 372,078,509.38, 558,117,763.89 and 138,927,429.25

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Solution

The fourth proportional to 372,078,509.38, 558,117,763.89 and 138,927,429.25 is: 208,391,143.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,078,509.38 : 558,117,763.89 = 138,927,429.25 : x
  2. Step 2: Convert to fraction form
    372,078,509.38/558,117,763.89 = 138,927,429.25/x
  3. Step 3: Cross multiply
    372,078,509.38x = 558,117,763.89 × 138,927,429.25
  4. Step 4: Simplify right side
    372,078,509.38x = 77,537,866,155,996,176
  5. Step 5: Solve for x
    x = 77,537,866,155,996,176/372,078,509.38
  6. Step 6: Final answer
    x = 208,391,143.81

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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.