Home / 28,605,622.60-42,908,433.90-19,996,278.40

Finding the Fourth Proportional to 28,605,622.60, 42,908,433.90 and 19,996,278.40

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Solution

The fourth proportional to 28,605,622.60, 42,908,433.90 and 19,996,278.40 is: 29,994,417.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,605,622.60 : 42,908,433.90 = 19,996,278.40 : x
  2. Step 2: Convert to fraction form
    28,605,622.60/42,908,433.90 = 19,996,278.40/x
  3. Step 3: Cross multiply
    28,605,622.60x = 42,908,433.90 × 19,996,278.40
  4. Step 4: Simplify right side
    28,605,622.60x = 858,008,989,972,397.62
  5. Step 5: Solve for x
    x = 858,008,989,972,397.62/28,605,622.60
  6. Step 6: Final answer
    x = 29,994,417.60

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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.