Home / 99,781,145.40-149,559,743.70-56,671,001.40

Finding the Fourth Proportional to 99,781,145.40, 149,559,743.70 and 56,671,001.40

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Solution

The fourth proportional to 99,781,145.40, 149,559,743.70 and 56,671,001.40 is: 84,942,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,781,145.40 : 149,559,743.70 = 56,671,001.40 : x
  2. Step 2: Convert to fraction form
    99,781,145.40/149,559,743.70 = 56,671,001.40/x
  3. Step 3: Cross multiply
    99,781,145.40x = 149,559,743.70 × 56,671,001.40
  4. Step 4: Simplify right side
    99,781,145.40x = 8,475,700,444,606,340
  5. Step 5: Solve for x
    x = 8,475,700,444,606,340/99,781,145.40
  6. Step 6: Final answer
    x = 84,942,905.90

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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.