Home / 717,704,552.80-1,076,556,829.20-391,187,202.40

Finding the Fourth Proportional to 717,704,552.80, 1,076,556,829.20 and 391,187,202.40

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Solution

The fourth proportional to 717,704,552.80, 1,076,556,829.20 and 391,187,202.40 is: 586,780,803.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,704,552.80 : 1,076,556,829.20 = 391,187,202.40 : x
  2. Step 2: Convert to fraction form
    717,704,552.80/1,076,556,829.20 = 391,187,202.40/x
  3. Step 3: Cross multiply
    717,704,552.80x = 1,076,556,829.20 × 391,187,202.40
  4. Step 4: Simplify right side
    717,704,552.80x = 421,135,254,239,362,624
  5. Step 5: Solve for x
    x = 421,135,254,239,362,624/717,704,552.80
  6. Step 6: Final answer
    x = 586,780,803.60

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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.