Home / 79,071,035.40-118,683,061.88-38,159,274.78

Finding the Fourth Proportional to 79,071,035.40, 118,683,061.88 and 38,159,274.78

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Solution

The fourth proportional to 79,071,035.40, 118,683,061.88 and 38,159,274.78 is: 57,275,834.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,071,035.40 : 118,683,061.88 = 38,159,274.78 : x
  2. Step 2: Convert to fraction form
    79,071,035.40/118,683,061.88 = 38,159,274.78/x
  3. Step 3: Cross multiply
    79,071,035.40x = 118,683,061.88 × 38,159,274.78
  4. Step 4: Simplify right side
    79,071,035.40x = 4,528,859,569,819,867
  5. Step 5: Solve for x
    x = 4,528,859,569,819,867/79,071,035.40
  6. Step 6: Final answer
    x = 57,275,834.91

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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.