Home / 78,356,064.60-117,534,096.90-69,995,309.40

Finding the Fourth Proportional to 78,356,064.60, 117,534,096.90 and 69,995,309.40

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Solution

The fourth proportional to 78,356,064.60, 117,534,096.90 and 69,995,309.40 is: 104,992,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,356,064.60 : 117,534,096.90 = 69,995,309.40 : x
  2. Step 2: Convert to fraction form
    78,356,064.60/117,534,096.90 = 69,995,309.40/x
  3. Step 3: Cross multiply
    78,356,064.60x = 117,534,096.90 × 69,995,309.40
  4. Step 4: Simplify right side
    78,356,064.60x = 8,226,835,477,565,082
  5. Step 5: Solve for x
    x = 8,226,835,477,565,082/78,356,064.60
  6. Step 6: Final answer
    x = 104,992,964.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.