Home / 9,521,898.04-13,144,240.07-6,428,609.78

Finding the Fourth Proportional to 9,521,898.04, 13,144,240.07 and 6,428,609.78

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Solution

The fourth proportional to 9,521,898.04, 13,144,240.07 and 6,428,609.78 is: 8,874,196.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,521,898.04 : 13,144,240.07 = 6,428,609.78 : x
  2. Step 2: Convert to fraction form
    9,521,898.04/13,144,240.07 = 6,428,609.78/x
  3. Step 3: Cross multiply
    9,521,898.04x = 13,144,240.07 × 6,428,609.78
  4. Step 4: Simplify right side
    9,521,898.04x = 84,499,190,264,669.89
  5. Step 5: Solve for x
    x = 84,499,190,264,669.89/9,521,898.04
  6. Step 6: Final answer
    x = 8,874,196.08

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Double scale
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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.