Home / 78,389,916.12-117,577,275.98-23,802,981.49

Finding the Fourth Proportional to 78,389,916.12, 117,577,275.98 and 23,802,981.49

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Solution

The fourth proportional to 78,389,916.12, 117,577,275.98 and 23,802,981.49 is: 35,702,165.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,389,916.12 : 117,577,275.98 = 23,802,981.49 : x
  2. Step 2: Convert to fraction form
    78,389,916.12/117,577,275.98 = 23,802,981.49/x
  3. Step 3: Cross multiply
    78,389,916.12x = 117,577,275.98 × 23,802,981.49
  4. Step 4: Simplify right side
    78,389,916.12x = 2,798,689,723,612,014
  5. Step 5: Solve for x
    x = 2,798,689,723,612,014/78,389,916.12
  6. Step 6: Final answer
    x = 35,702,165.05

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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.