Home / 79,350,401.80-118,878,636.30-45,170,216.20

Finding the Fourth Proportional to 79,350,401.80, 118,878,636.30 and 45,170,216.20

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Solution

The fourth proportional to 79,350,401.80, 118,878,636.30 and 45,170,216.20 is: 67,671,663.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,350,401.80 : 118,878,636.30 = 45,170,216.20 : x
  2. Step 2: Convert to fraction form
    79,350,401.80/118,878,636.30 = 45,170,216.20/x
  3. Step 3: Cross multiply
    79,350,401.80x = 118,878,636.30 × 45,170,216.20
  4. Step 4: Simplify right side
    79,350,401.80x = 5,369,773,703,232,168
  5. Step 5: Solve for x
    x = 5,369,773,703,232,168/79,350,401.80
  6. Step 6: Final answer
    x = 67,671,663.68

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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.