Home / 112,016,509.60-168,023,089.32-68,310,108.40

Finding the Fourth Proportional to 112,016,509.60, 168,023,089.32 and 68,310,108.40

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Solution

The fourth proportional to 112,016,509.60, 168,023,089.32 and 68,310,108.40 is: 102,464,141.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,016,509.60 : 168,023,089.32 = 68,310,108.40 : x
  2. Step 2: Convert to fraction form
    112,016,509.60/168,023,089.32 = 68,310,108.40/x
  3. Step 3: Cross multiply
    112,016,509.60x = 168,023,089.32 × 68,310,108.40
  4. Step 4: Simplify right side
    112,016,509.60x = 11,477,675,445,152,082
  5. Step 5: Solve for x
    x = 11,477,675,445,152,082/112,016,509.60
  6. Step 6: Final answer
    x = 102,464,141.10

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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.