Home / 11,881,070.16-16,425,861.78-8,778,700.40

Finding the Fourth Proportional to 11,881,070.16, 16,425,861.78 and 8,778,700.40

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Solution

The fourth proportional to 11,881,070.16, 16,425,861.78 and 8,778,700.40 is: 12,136,761.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881,070.16 : 16,425,861.78 = 8,778,700.40 : x
  2. Step 2: Convert to fraction form
    11,881,070.16/16,425,861.78 = 8,778,700.40/x
  3. Step 3: Cross multiply
    11,881,070.16x = 16,425,861.78 × 8,778,700.40
  4. Step 4: Simplify right side
    11,881,070.16x = 144,197,719,378,430.72
  5. Step 5: Solve for x
    x = 144,197,719,378,430.72/11,881,070.16
  6. Step 6: Final answer
    x = 12,136,761.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.