Home / 121,143,916.80-181,715,875.20-56,426,212.80

Finding the Fourth Proportional to 121,143,916.80, 181,715,875.20 and 56,426,212.80

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Solution

The fourth proportional to 121,143,916.80, 181,715,875.20 and 56,426,212.80 is: 84,639,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,143,916.80 : 181,715,875.20 = 56,426,212.80 : x
  2. Step 2: Convert to fraction form
    121,143,916.80/181,715,875.20 = 56,426,212.80/x
  3. Step 3: Cross multiply
    121,143,916.80x = 181,715,875.20 × 56,426,212.80
  4. Step 4: Simplify right side
    121,143,916.80x = 10,253,538,643,173,442
  5. Step 5: Solve for x
    x = 10,253,538,643,173,442/121,143,916.80
  6. Step 6: Final answer
    x = 84,639,319.20

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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.