Home / 30,223,290.90-45,335,428.44-8,657,808.78

Finding the Fourth Proportional to 30,223,290.90, 45,335,428.44 and 8,657,808.78

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Solution

The fourth proportional to 30,223,290.90, 45,335,428.44 and 8,657,808.78 is: 12,986,854.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,223,290.90 : 45,335,428.44 = 8,657,808.78 : x
  2. Step 2: Convert to fraction form
    30,223,290.90/45,335,428.44 = 8,657,808.78/x
  3. Step 3: Cross multiply
    30,223,290.90x = 45,335,428.44 × 8,657,808.78
  4. Step 4: Simplify right side
    30,223,290.90x = 392,505,470,392,893.62
  5. Step 5: Solve for x
    x = 392,505,470,392,893.62/30,223,290.90
  6. Step 6: Final answer
    x = 12,986,854.13

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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.