Home / 72,579,389.40-108,869,084.10-59,814,307.80

Finding the Fourth Proportional to 72,579,389.40, 108,869,084.10 and 59,814,307.80

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Solution

The fourth proportional to 72,579,389.40, 108,869,084.10 and 59,814,307.80 is: 89,721,461.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,579,389.40 : 108,869,084.10 = 59,814,307.80 : x
  2. Step 2: Convert to fraction form
    72,579,389.40/108,869,084.10 = 59,814,307.80/x
  3. Step 3: Cross multiply
    72,579,389.40x = 108,869,084.10 × 59,814,307.80
  4. Step 4: Simplify right side
    72,579,389.40x = 6,511,928,906,261,485
  5. Step 5: Solve for x
    x = 6,511,928,906,261,485/72,579,389.40
  6. Step 6: Final answer
    x = 89,721,461.70

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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.