Home / 9,160,139.04-12,640,406.80-5,085,756.96

Finding the Fourth Proportional to 9,160,139.04, 12,640,406.80 and 5,085,756.96

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Solution

The fourth proportional to 9,160,139.04, 12,640,406.80 and 5,085,756.96 is: 7,018,019.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,160,139.04 : 12,640,406.80 = 5,085,756.96 : x
  2. Step 2: Convert to fraction form
    9,160,139.04/12,640,406.80 = 5,085,756.96/x
  3. Step 3: Cross multiply
    9,160,139.04x = 12,640,406.80 × 5,085,756.96
  4. Step 4: Simplify right side
    9,160,139.04x = 64,286,036,860,331.33
  5. Step 5: Solve for x
    x = 64,286,036,860,331.33/9,160,139.04
  6. Step 6: Final answer
    x = 7,018,019.77

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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.