Home / 121,117,946.80-181,460,407.20-73,708,160.80

Finding the Fourth Proportional to 121,117,946.80, 181,460,407.20 and 73,708,160.80

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Solution

The fourth proportional to 121,117,946.80, 181,460,407.20 and 73,708,160.80 is: 110,430,478.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,117,946.80 : 181,460,407.20 = 73,708,160.80 : x
  2. Step 2: Convert to fraction form
    121,117,946.80/181,460,407.20 = 73,708,160.80/x
  3. Step 3: Cross multiply
    121,117,946.80x = 181,460,407.20 × 73,708,160.80
  4. Step 4: Simplify right side
    121,117,946.80x = 13,375,112,872,731,076
  5. Step 5: Solve for x
    x = 13,375,112,872,731,076/121,117,946.80
  6. Step 6: Final answer
    x = 110,430,478.93

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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.