Home / 1,187,532,087.80-1,781,298,131.70-1,003,866,078.20

Finding the Fourth Proportional to 1,187,532,087.80, 1,781,298,131.70 and 1,003,866,078.20

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Solution

The fourth proportional to 1,187,532,087.80, 1,781,298,131.70 and 1,003,866,078.20 is: 1,505,799,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,532,087.80 : 1,781,298,131.70 = 1,003,866,078.20 : x
  2. Step 2: Convert to fraction form
    1,187,532,087.80/1,781,298,131.70 = 1,003,866,078.20/x
  3. Step 3: Cross multiply
    1,187,532,087.80x = 1,781,298,131.70 × 1,003,866,078.20
  4. Step 4: Simplify right side
    1,187,532,087.80x = 1,788,184,769,574,666,240
  5. Step 5: Solve for x
    x = 1,788,184,769,574,666,240/1,187,532,087.80
  6. Step 6: Final answer
    x = 1,505,799,117.30

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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.