Home / 101,421,142.08-139,960,147.20-55,010,399.04

Finding the Fourth Proportional to 101,421,142.08, 139,960,147.20 and 55,010,399.04

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Solution

The fourth proportional to 101,421,142.08, 139,960,147.20 and 55,010,399.04 is: 75,913,792.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,421,142.08 : 139,960,147.20 = 55,010,399.04 : x
  2. Step 2: Convert to fraction form
    101,421,142.08/139,960,147.20 = 55,010,399.04/x
  3. Step 3: Cross multiply
    101,421,142.08x = 139,960,147.20 × 55,010,399.04
  4. Step 4: Simplify right side
    101,421,142.08x = 7,699,263,547,169,138
  5. Step 5: Solve for x
    x = 7,699,263,547,169,138/101,421,142.08
  6. Step 6: Final answer
    x = 75,913,792.62

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1.5x scale

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.