Home / 34,778,845.20-52,168,267.80-20,418,128.40

Finding the Fourth Proportional to 34,778,845.20, 52,168,267.80 and 20,418,128.40

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Solution

The fourth proportional to 34,778,845.20, 52,168,267.80 and 20,418,128.40 is: 30,627,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,778,845.20 : 52,168,267.80 = 20,418,128.40 : x
  2. Step 2: Convert to fraction form
    34,778,845.20/52,168,267.80 = 20,418,128.40/x
  3. Step 3: Cross multiply
    34,778,845.20x = 52,168,267.80 × 20,418,128.40
  4. Step 4: Simplify right side
    34,778,845.20x = 1,065,178,390,345,985.38
  5. Step 5: Solve for x
    x = 1,065,178,390,345,985.38/34,778,845.20
  6. Step 6: Final answer
    x = 30,627,192.60

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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.