Home / 85,537,180.80-128,081,822.40-62,694,403.20

Finding the Fourth Proportional to 85,537,180.80, 128,081,822.40 and 62,694,403.20

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Solution

The fourth proportional to 85,537,180.80, 128,081,822.40 and 62,694,403.20 is: 93,877,461.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,537,180.80 : 128,081,822.40 = 62,694,403.20 : x
  2. Step 2: Convert to fraction form
    85,537,180.80/128,081,822.40 = 62,694,403.20/x
  3. Step 3: Cross multiply
    85,537,180.80x = 128,081,822.40 × 62,694,403.20
  4. Step 4: Simplify right side
    85,537,180.80x = 8,030,013,416,136,392
  5. Step 5: Solve for x
    x = 8,030,013,416,136,392/85,537,180.80
  6. Step 6: Final answer
    x = 93,877,461.72

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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.