Home / 10,402,304.70-15,603,457.05-7,211,034.30

Finding the Fourth Proportional to 10,402,304.70, 15,603,457.05 and 7,211,034.30

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Solution

The fourth proportional to 10,402,304.70, 15,603,457.05 and 7,211,034.30 is: 10,816,551.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,402,304.70 : 15,603,457.05 = 7,211,034.30 : x
  2. Step 2: Convert to fraction form
    10,402,304.70/15,603,457.05 = 7,211,034.30/x
  3. Step 3: Cross multiply
    10,402,304.70x = 15,603,457.05 × 7,211,034.30
  4. Step 4: Simplify right side
    10,402,304.70x = 112,517,063,986,126.81
  5. Step 5: Solve for x
    x = 112,517,063,986,126.81/10,402,304.70
  6. Step 6: Final answer
    x = 10,816,551.45

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Double scale
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Similar ratio
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1.5x scale

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.