Home / 280,806,659.40-421,209,989.10-233,030,915.40

Finding the Fourth Proportional to 280,806,659.40, 421,209,989.10 and 233,030,915.40

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Solution

The fourth proportional to 280,806,659.40, 421,209,989.10 and 233,030,915.40 is: 349,546,373.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,806,659.40 : 421,209,989.10 = 233,030,915.40 : x
  2. Step 2: Convert to fraction form
    280,806,659.40/421,209,989.10 = 233,030,915.40/x
  3. Step 3: Cross multiply
    280,806,659.40x = 421,209,989.10 × 233,030,915.40
  4. Step 4: Simplify right side
    280,806,659.40x = 98,154,949,335,597,024
  5. Step 5: Solve for x
    x = 98,154,949,335,597,024/280,806,659.40
  6. Step 6: Final answer
    x = 349,546,373.10

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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.