Home / 163,346,834.70-245,020,252.05-72,479,609.10

Finding the Fourth Proportional to 163,346,834.70, 245,020,252.05 and 72,479,609.10

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Solution

The fourth proportional to 163,346,834.70, 245,020,252.05 and 72,479,609.10 is: 108,719,413.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,346,834.70 : 245,020,252.05 = 72,479,609.10 : x
  2. Step 2: Convert to fraction form
    163,346,834.70/245,020,252.05 = 72,479,609.10/x
  3. Step 3: Cross multiply
    163,346,834.70x = 245,020,252.05 × 72,479,609.10
  4. Step 4: Simplify right side
    163,346,834.70x = 17,758,972,090,167,474
  5. Step 5: Solve for x
    x = 17,758,972,090,167,474/163,346,834.70
  6. Step 6: Final answer
    x = 108,719,413.65

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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.