Home / 6,438,574,726.20-9,657,862,089.30-5,405,453,422.20

Finding the Fourth Proportional to 6,438,574,726.20, 9,657,862,089.30 and 5,405,453,422.20

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Solution

The fourth proportional to 6,438,574,726.20, 9,657,862,089.30 and 5,405,453,422.20 is: 8,108,180,133.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438,574,726.20 : 9,657,862,089.30 = 5,405,453,422.20 : x
  2. Step 2: Convert to fraction form
    6,438,574,726.20/9,657,862,089.30 = 5,405,453,422.20/x
  3. Step 3: Cross multiply
    6,438,574,726.20x = 9,657,862,089.30 × 5,405,453,422.20
  4. Step 4: Simplify right side
    6,438,574,726.20x = 52,205,123,681,742,323,712
  5. Step 5: Solve for x
    x = 52,205,123,681,742,323,712/6,438,574,726.20
  6. Step 6: Final answer
    x = 8,108,180,133.30

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Double scale
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Similar ratio
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1.5x scale

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.