Home / 56,916,981.18-78,545,343.65-30,811,492.09

Finding the Fourth Proportional to 56,916,981.18, 78,545,343.65 and 30,811,492.09

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Solution

The fourth proportional to 56,916,981.18, 78,545,343.65 and 30,811,492.09 is: 42,519,810.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,916,981.18 : 78,545,343.65 = 30,811,492.09 : x
  2. Step 2: Convert to fraction form
    56,916,981.18/78,545,343.65 = 30,811,492.09/x
  3. Step 3: Cross multiply
    56,916,981.18x = 78,545,343.65 × 30,811,492.09
  4. Step 4: Simplify right side
    56,916,981.18x = 2,420,099,234,695,838
  5. Step 5: Solve for x
    x = 2,420,099,234,695,838/56,916,981.18
  6. Step 6: Final answer
    x = 42,519,810.16

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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.