Home / 120,679,548.20-181,019,322.30-72,306,607.40

Finding the Fourth Proportional to 120,679,548.20, 181,019,322.30 and 72,306,607.40

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Solution

The fourth proportional to 120,679,548.20, 181,019,322.30 and 72,306,607.40 is: 108,459,911.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,679,548.20 : 181,019,322.30 = 72,306,607.40 : x
  2. Step 2: Convert to fraction form
    120,679,548.20/181,019,322.30 = 72,306,607.40/x
  3. Step 3: Cross multiply
    120,679,548.20x = 181,019,322.30 × 72,306,607.40
  4. Step 4: Simplify right side
    120,679,548.20x = 13,088,893,069,360,166
  5. Step 5: Solve for x
    x = 13,088,893,069,360,166/120,679,548.20
  6. Step 6: Final answer
    x = 108,459,911.10

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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.