Home / 280,173,555.40-420,260,333.10-98,420,733.40

Finding the Fourth Proportional to 280,173,555.40, 420,260,333.10 and 98,420,733.40

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Solution

The fourth proportional to 280,173,555.40, 420,260,333.10 and 98,420,733.40 is: 147,631,100.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,173,555.40 : 420,260,333.10 = 98,420,733.40 : x
  2. Step 2: Convert to fraction form
    280,173,555.40/420,260,333.10 = 98,420,733.40/x
  3. Step 3: Cross multiply
    280,173,555.40x = 420,260,333.10 × 98,420,733.40
  4. Step 4: Simplify right side
    280,173,555.40x = 41,362,330,202,630,304
  5. Step 5: Solve for x
    x = 41,362,330,202,630,304/280,173,555.40
  6. Step 6: Final answer
    x = 147,631,100.10

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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.