Home / 7,128,001.90-10,692,002.85-6,624,117.10

Finding the Fourth Proportional to 7,128,001.90, 10,692,002.85 and 6,624,117.10

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Solution

The fourth proportional to 7,128,001.90, 10,692,002.85 and 6,624,117.10 is: 9,936,175.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,001.90 : 10,692,002.85 = 6,624,117.10 : x
  2. Step 2: Convert to fraction form
    7,128,001.90/10,692,002.85 = 6,624,117.10/x
  3. Step 3: Cross multiply
    7,128,001.90x = 10,692,002.85 × 6,624,117.10
  4. Step 4: Simplify right side
    7,128,001.90x = 70,825,078,911,933.73
  5. Step 5: Solve for x
    x = 70,825,078,911,933.73/7,128,001.90
  6. Step 6: Final answer
    x = 9,936,175.65

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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.