Home / 429,255,087.20-643,966,611.60-183,611,247.20

Finding the Fourth Proportional to 429,255,087.20, 643,966,611.60 and 183,611,247.20

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Solution

The fourth proportional to 429,255,087.20, 643,966,611.60 and 183,611,247.20 is: 275,452,793.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,255,087.20 : 643,966,611.60 = 183,611,247.20 : x
  2. Step 2: Convert to fraction form
    429,255,087.20/643,966,611.60 = 183,611,247.20/x
  3. Step 3: Cross multiply
    429,255,087.20x = 643,966,611.60 × 183,611,247.20
  4. Step 4: Simplify right side
    429,255,087.20x = 118,239,512,711,033,984
  5. Step 5: Solve for x
    x = 118,239,512,711,033,984/429,255,087.20
  6. Step 6: Final answer
    x = 275,452,793.08

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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.