Home / 90,507,216.16-124,904,071.20-53,339,065.12

Finding the Fourth Proportional to 90,507,216.16, 124,904,071.20 and 53,339,065.12

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Solution

The fourth proportional to 90,507,216.16, 124,904,071.20 and 53,339,065.12 is: 73,610,333.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,507,216.16 : 124,904,071.20 = 53,339,065.12 : x
  2. Step 2: Convert to fraction form
    90,507,216.16/124,904,071.20 = 53,339,065.12/x
  3. Step 3: Cross multiply
    90,507,216.16x = 124,904,071.20 × 53,339,065.12
  4. Step 4: Simplify right side
    90,507,216.16x = 6,662,266,387,489,916
  5. Step 5: Solve for x
    x = 6,662,266,387,489,916/90,507,216.16
  6. Step 6: Final answer
    x = 73,610,333.74

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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.