Home / 121,156,931.80-181,798,383.30-53,006,512.60

Finding the Fourth Proportional to 121,156,931.80, 181,798,383.30 and 53,006,512.60

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Solution

The fourth proportional to 121,156,931.80, 181,798,383.30 and 53,006,512.60 is: 79,537,325.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,156,931.80 : 181,798,383.30 = 53,006,512.60 : x
  2. Step 2: Convert to fraction form
    121,156,931.80/181,798,383.30 = 53,006,512.60/x
  3. Step 3: Cross multiply
    121,156,931.80x = 181,798,383.30 × 53,006,512.60
  4. Step 4: Simplify right side
    121,156,931.80x = 9,636,498,295,051,080
  5. Step 5: Solve for x
    x = 9,636,498,295,051,080/121,156,931.80
  6. Step 6: Final answer
    x = 79,537,325.28

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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.