Home / 38,838,701.20-58,258,051.80-19,728,403.60

Finding the Fourth Proportional to 38,838,701.20, 58,258,051.80 and 19,728,403.60

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Solution

The fourth proportional to 38,838,701.20, 58,258,051.80 and 19,728,403.60 is: 29,592,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,838,701.20 : 58,258,051.80 = 19,728,403.60 : x
  2. Step 2: Convert to fraction form
    38,838,701.20/58,258,051.80 = 19,728,403.60/x
  3. Step 3: Cross multiply
    38,838,701.20x = 58,258,051.80 × 19,728,403.60
  4. Step 4: Simplify right side
    38,838,701.20x = 1,149,338,358,860,106.50
  5. Step 5: Solve for x
    x = 1,149,338,358,860,106.50/38,838,701.20
  6. Step 6: Final answer
    x = 29,592,605.40

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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.