Home / 538,289,521.47-807,434,281.29-129,345,671.97

Finding the Fourth Proportional to 538,289,521.47, 807,434,281.29 and 129,345,671.97

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Solution

The fourth proportional to 538,289,521.47, 807,434,281.29 and 129,345,671.97 is: 194,018,507.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,289,521.47 : 807,434,281.29 = 129,345,671.97 : x
  2. Step 2: Convert to fraction form
    538,289,521.47/807,434,281.29 = 129,345,671.97/x
  3. Step 3: Cross multiply
    538,289,521.47x = 807,434,281.29 × 129,345,671.97
  4. Step 4: Simplify right side
    538,289,521.47x = 104,438,129,685,069,040
  5. Step 5: Solve for x
    x = 104,438,129,685,069,040/538,289,521.47
  6. Step 6: Final answer
    x = 194,018,507.74

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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.