Home / 168,931,012.97-253,492,377.02-91,206,881.93

Finding the Fourth Proportional to 168,931,012.97, 253,492,377.02 and 91,206,881.93

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Solution

The fourth proportional to 168,931,012.97, 253,492,377.02 and 91,206,881.93 is: 136,862,076.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,931,012.97 : 253,492,377.02 = 91,206,881.93 : x
  2. Step 2: Convert to fraction form
    168,931,012.97/253,492,377.02 = 91,206,881.93/x
  3. Step 3: Cross multiply
    168,931,012.97x = 253,492,377.02 × 91,206,881.93
  4. Step 4: Simplify right side
    168,931,012.97x = 23,120,249,299,294,688
  5. Step 5: Solve for x
    x = 23,120,249,299,294,688/168,931,012.97
  6. Step 6: Final answer
    x = 136,862,076.97

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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.