Home / 84,019,683.40-126,029,525.10-20,194,275.40

Finding the Fourth Proportional to 84,019,683.40, 126,029,525.10 and 20,194,275.40

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Solution

The fourth proportional to 84,019,683.40, 126,029,525.10 and 20,194,275.40 is: 30,291,413.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,019,683.40 : 126,029,525.10 = 20,194,275.40 : x
  2. Step 2: Convert to fraction form
    84,019,683.40/126,029,525.10 = 20,194,275.40/x
  3. Step 3: Cross multiply
    84,019,683.40x = 126,029,525.10 × 20,194,275.40
  4. Step 4: Simplify right side
    84,019,683.40x = 2,545,074,938,400,612
  5. Step 5: Solve for x
    x = 2,545,074,938,400,612/84,019,683.40
  6. Step 6: Final answer
    x = 30,291,413.10

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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.