Home / 7,128,001.40-10,692,002.10-5,238,433.40

Finding the Fourth Proportional to 7,128,001.40, 10,692,002.10 and 5,238,433.40

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Solution

The fourth proportional to 7,128,001.40, 10,692,002.10 and 5,238,433.40 is: 7,857,650.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,001.40 : 10,692,002.10 = 5,238,433.40 : x
  2. Step 2: Convert to fraction form
    7,128,001.40/10,692,002.10 = 5,238,433.40/x
  3. Step 3: Cross multiply
    7,128,001.40x = 10,692,002.10 × 5,238,433.40
  4. Step 4: Simplify right side
    7,128,001.40x = 56,009,340,913,510.14
  5. Step 5: Solve for x
    x = 56,009,340,913,510.14/7,128,001.40
  6. Step 6: Final answer
    x = 7,857,650.10

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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.