Home / 429,576,176.80-644,364,265.20-156,911,514.40

Finding the Fourth Proportional to 429,576,176.80, 644,364,265.20 and 156,911,514.40

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Solution

The fourth proportional to 429,576,176.80, 644,364,265.20 and 156,911,514.40 is: 235,367,271.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,576,176.80 : 644,364,265.20 = 156,911,514.40 : x
  2. Step 2: Convert to fraction form
    429,576,176.80/644,364,265.20 = 156,911,514.40/x
  3. Step 3: Cross multiply
    429,576,176.80x = 644,364,265.20 × 156,911,514.40
  4. Step 4: Simplify right side
    429,576,176.80x = 101,108,172,677,775,232
  5. Step 5: Solve for x
    x = 101,108,172,677,775,232/429,576,176.80
  6. Step 6: Final answer
    x = 235,367,271.60

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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.