Home / 99,681,134.40-149,360,738.40-56,421,691.20

Finding the Fourth Proportional to 99,681,134.40, 149,360,738.40 and 56,421,691.20

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Solution

The fourth proportional to 99,681,134.40, 149,360,738.40 and 56,421,691.20 is: 84,541,428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,681,134.40 : 149,360,738.40 = 56,421,691.20 : x
  2. Step 2: Convert to fraction form
    99,681,134.40/149,360,738.40 = 56,421,691.20/x
  3. Step 3: Cross multiply
    99,681,134.40x = 149,360,738.40 × 56,421,691.20
  4. Step 4: Simplify right side
    99,681,134.40x = 8,427,185,459,408,783
  5. Step 5: Solve for x
    x = 8,427,185,459,408,783/99,681,134.40
  6. Step 6: Final answer
    x = 84,541,428.13

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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.