Home / 10,402,392.80-15,603,589.20-6,371,314.40

Finding the Fourth Proportional to 10,402,392.80, 15,603,589.20 and 6,371,314.40

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Solution

The fourth proportional to 10,402,392.80, 15,603,589.20 and 6,371,314.40 is: 9,556,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,402,392.80 : 15,603,589.20 = 6,371,314.40 : x
  2. Step 2: Convert to fraction form
    10,402,392.80/15,603,589.20 = 6,371,314.40/x
  3. Step 3: Cross multiply
    10,402,392.80x = 15,603,589.20 × 6,371,314.40
  4. Step 4: Simplify right side
    10,402,392.80x = 99,415,372,561,644.48
  5. Step 5: Solve for x
    x = 99,415,372,561,644.48/10,402,392.80
  6. Step 6: Final answer
    x = 9,556,971.60

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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.