Home / 280,853,125.40-421,281,000.30-99,100,303.40

Finding the Fourth Proportional to 280,853,125.40, 421,281,000.30 and 99,100,303.40

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Solution

The fourth proportional to 280,853,125.40, 421,281,000.30 and 99,100,303.40 is: 148,650,918.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,853,125.40 : 421,281,000.30 = 99,100,303.40 : x
  2. Step 2: Convert to fraction form
    280,853,125.40/421,281,000.30 = 99,100,303.40/x
  3. Step 3: Cross multiply
    280,853,125.40x = 421,281,000.30 × 99,100,303.40
  4. Step 4: Simplify right side
    280,853,125.40x = 41,749,074,946,385,496
  5. Step 5: Solve for x
    x = 41,749,074,946,385,496/280,853,125.40
  6. Step 6: Final answer
    x = 148,650,918.12

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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.