Home / 78,731,316.64-108,525,495.90-53,908,577.20

Finding the Fourth Proportional to 78,731,316.64, 108,525,495.90 and 53,908,577.20

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Solution

The fourth proportional to 78,731,316.64, 108,525,495.90 and 53,908,577.20 is: 74,309,122.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,731,316.64 : 108,525,495.90 = 53,908,577.20 : x
  2. Step 2: Convert to fraction form
    78,731,316.64/108,525,495.90 = 53,908,577.20/x
  3. Step 3: Cross multiply
    78,731,316.64x = 108,525,495.90 × 53,908,577.20
  4. Step 4: Simplify right side
    78,731,316.64x = 5,850,455,073,893,434
  5. Step 5: Solve for x
    x = 5,850,455,073,893,434/78,731,316.64
  6. Step 6: Final answer
    x = 74,309,122.77

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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.