Home / 10,459,143.60-15,688,715.40-8,785,104.45

Finding the Fourth Proportional to 10,459,143.60, 15,688,715.40 and 8,785,104.45

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Solution

The fourth proportional to 10,459,143.60, 15,688,715.40 and 8,785,104.45 is: 13,177,656.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,459,143.60 : 15,688,715.40 = 8,785,104.45 : x
  2. Step 2: Convert to fraction form
    10,459,143.60/15,688,715.40 = 8,785,104.45/x
  3. Step 3: Cross multiply
    10,459,143.60x = 15,688,715.40 × 8,785,104.45
  4. Step 4: Simplify right side
    10,459,143.60x = 137,827,003,475,323.52
  5. Step 5: Solve for x
    x = 137,827,003,475,323.52/10,459,143.60
  6. Step 6: Final answer
    x = 13,177,656.68

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1.5x scale

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.