Home / 79,778,534.60-119,726,784.30-31,943,808.20

Finding the Fourth Proportional to 79,778,534.60, 119,726,784.30 and 31,943,808.20

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Solution

The fourth proportional to 79,778,534.60, 119,726,784.30 and 31,943,808.20 is: 47,939,329.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,778,534.60 : 119,726,784.30 = 31,943,808.20 : x
  2. Step 2: Convert to fraction form
    79,778,534.60/119,726,784.30 = 31,943,808.20/x
  3. Step 3: Cross multiply
    79,778,534.60x = 119,726,784.30 × 31,943,808.20
  4. Step 4: Simplify right side
    79,778,534.60x = 3,824,529,434,081,971
  5. Step 5: Solve for x
    x = 3,824,529,434,081,971/79,778,534.60
  6. Step 6: Final answer
    x = 47,939,329.21

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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.