Home / 72,401,863.80-108,602,795.70-64,465,678.20

Finding the Fourth Proportional to 72,401,863.80, 108,602,795.70 and 64,465,678.20

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Solution

The fourth proportional to 72,401,863.80, 108,602,795.70 and 64,465,678.20 is: 96,698,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,401,863.80 : 108,602,795.70 = 64,465,678.20 : x
  2. Step 2: Convert to fraction form
    72,401,863.80/108,602,795.70 = 64,465,678.20/x
  3. Step 3: Cross multiply
    72,401,863.80x = 108,602,795.70 × 64,465,678.20
  4. Step 4: Simplify right side
    72,401,863.80x = 7,001,152,879,216,544
  5. Step 5: Solve for x
    x = 7,001,152,879,216,544/72,401,863.80
  6. Step 6: Final answer
    x = 96,698,517.30

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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.