Home / 99,779,490.40-149,557,261.20-56,669,346.40

Finding the Fourth Proportional to 99,779,490.40, 149,557,261.20 and 56,669,346.40

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Solution

The fourth proportional to 99,779,490.40, 149,557,261.20 and 56,669,346.40 is: 84,940,424.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,779,490.40 : 149,557,261.20 = 56,669,346.40 : x
  2. Step 2: Convert to fraction form
    99,779,490.40/149,557,261.20 = 56,669,346.40/x
  3. Step 3: Cross multiply
    99,779,490.40x = 149,557,261.20 × 56,669,346.40
  4. Step 4: Simplify right side
    99,779,490.40x = 8,475,312,241,578,079
  5. Step 5: Solve for x
    x = 8,475,312,241,578,079/99,779,490.40
  6. Step 6: Final answer
    x = 84,940,424.21

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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.