Home / 10,358,401.60-15,537,602.40-8,216,891.20

Finding the Fourth Proportional to 10,358,401.60, 15,537,602.40 and 8,216,891.20

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Solution

The fourth proportional to 10,358,401.60, 15,537,602.40 and 8,216,891.20 is: 12,325,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,358,401.60 : 15,537,602.40 = 8,216,891.20 : x
  2. Step 2: Convert to fraction form
    10,358,401.60/15,537,602.40 = 8,216,891.20/x
  3. Step 3: Cross multiply
    10,358,401.60x = 15,537,602.40 × 8,216,891.20
  4. Step 4: Simplify right side
    10,358,401.60x = 127,670,788,429,658.89
  5. Step 5: Solve for x
    x = 127,670,788,429,658.89/10,358,401.60
  6. Step 6: Final answer
    x = 12,325,336.80

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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.