Home / 121,113,838.60-181,712,748.30-53,005,409.80

Finding the Fourth Proportional to 121,113,838.60, 181,712,748.30 and 53,005,409.80

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Solution

The fourth proportional to 121,113,838.60, 181,712,748.30 and 53,005,409.80 is: 79,526,491.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,113,838.60 : 181,712,748.30 = 53,005,409.80 : x
  2. Step 2: Convert to fraction form
    121,113,838.60/181,712,748.30 = 53,005,409.80/x
  3. Step 3: Cross multiply
    121,113,838.60x = 181,712,748.30 × 53,005,409.80
  4. Step 4: Simplify right side
    121,113,838.60x = 9,631,758,689,525,754
  5. Step 5: Solve for x
    x = 9,631,758,689,525,754/121,113,838.60
  6. Step 6: Final answer
    x = 79,526,491.78

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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.