Home / 10,459,145.10-15,688,717.65-8,785,105.95

Finding the Fourth Proportional to 10,459,145.10, 15,688,717.65 and 8,785,105.95

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Solution

The fourth proportional to 10,459,145.10, 15,688,717.65 and 8,785,105.95 is: 13,177,658.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,459,145.10 : 15,688,717.65 = 8,785,105.95 : x
  2. Step 2: Convert to fraction form
    10,459,145.10/15,688,717.65 = 8,785,105.95/x
  3. Step 3: Cross multiply
    10,459,145.10x = 15,688,717.65 × 8,785,105.95
  4. Step 4: Simplify right side
    10,459,145.10x = 137,827,046,774,885.02
  5. Step 5: Solve for x
    x = 137,827,046,774,885.02/10,459,145.10
  6. Step 6: Final answer
    x = 13,177,658.93

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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.