Home / 113,509,120.74-156,642,583.91-61,298,152.13

Finding the Fourth Proportional to 113,509,120.74, 156,642,583.91 and 61,298,152.13

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Solution

The fourth proportional to 113,509,120.74, 156,642,583.91 and 61,298,152.13 is: 84,591,448.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,509,120.74 : 156,642,583.91 = 61,298,152.13 : x
  2. Step 2: Convert to fraction form
    113,509,120.74/156,642,583.91 = 61,298,152.13/x
  3. Step 3: Cross multiply
    113,509,120.74x = 156,642,583.91 × 61,298,152.13
  4. Step 4: Simplify right side
    113,509,120.74x = 9,601,900,937,461,766
  5. Step 5: Solve for x
    x = 9,601,900,937,461,766/113,509,120.74
  6. Step 6: Final answer
    x = 84,591,448.47

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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.