Home / 151,609,658.28-209,221,328.56-81,995,038.80

Finding the Fourth Proportional to 151,609,658.28, 209,221,328.56 and 81,995,038.80

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Solution

The fourth proportional to 151,609,658.28, 209,221,328.56 and 81,995,038.80 is: 113,153,153.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,609,658.28 : 209,221,328.56 = 81,995,038.80 : x
  2. Step 2: Convert to fraction form
    151,609,658.28/209,221,328.56 = 81,995,038.80/x
  3. Step 3: Cross multiply
    151,609,658.28x = 209,221,328.56 × 81,995,038.80
  4. Step 4: Simplify right side
    151,609,658.28x = 17,155,110,953,064,748
  5. Step 5: Solve for x
    x = 17,155,110,953,064,748/151,609,658.28
  6. Step 6: Final answer
    x = 113,153,153.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.