Home / 289,396,068.60-399,367,052.46-157,237,583.16

Finding the Fourth Proportional to 289,396,068.60, 399,367,052.46 and 157,237,583.16

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Solution

The fourth proportional to 289,396,068.60, 399,367,052.46 and 157,237,583.16 is: 216,988,124.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,396,068.60 : 399,367,052.46 = 157,237,583.16 : x
  2. Step 2: Convert to fraction form
    289,396,068.60/399,367,052.46 = 157,237,583.16/x
  3. Step 3: Cross multiply
    289,396,068.60x = 399,367,052.46 × 157,237,583.16
  4. Step 4: Simplify right side
    289,396,068.60x = 62,795,510,122,543,328
  5. Step 5: Solve for x
    x = 62,795,510,122,543,328/289,396,068.60
  6. Step 6: Final answer
    x = 216,988,124.36

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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.