Home / 78,317,064.02-108,071,222.08-45,279,442.61

Finding the Fourth Proportional to 78,317,064.02, 108,071,222.08 and 45,279,442.61

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Solution

The fourth proportional to 78,317,064.02, 108,071,222.08 and 45,279,442.61 is: 62,481,973.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,317,064.02 : 108,071,222.08 = 45,279,442.61 : x
  2. Step 2: Convert to fraction form
    78,317,064.02/108,071,222.08 = 45,279,442.61/x
  3. Step 3: Cross multiply
    78,317,064.02x = 108,071,222.08 × 45,279,442.61
  4. Step 4: Simplify right side
    78,317,064.02x = 4,893,404,697,963,925
  5. Step 5: Solve for x
    x = 4,893,404,697,963,925/78,317,064.02
  6. Step 6: Final answer
    x = 62,481,973.24

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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.