Home / 10,402,281.20-15,603,421.80-7,211,010.80

Finding the Fourth Proportional to 10,402,281.20, 15,603,421.80 and 7,211,010.80

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Solution

The fourth proportional to 10,402,281.20, 15,603,421.80 and 7,211,010.80 is: 10,816,516.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,402,281.20 : 15,603,421.80 = 7,211,010.80 : x
  2. Step 2: Convert to fraction form
    10,402,281.20/15,603,421.80 = 7,211,010.80/x
  3. Step 3: Cross multiply
    10,402,281.20x = 15,603,421.80 × 7,211,010.80
  4. Step 4: Simplify right side
    10,402,281.20x = 112,516,443,116,755.44
  5. Step 5: Solve for x
    x = 112,516,443,116,755.44/10,402,281.20
  6. Step 6: Final answer
    x = 10,816,516.20

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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.