Home / 99,643,690.80-149,465,536.20-79,488,298.80

Finding the Fourth Proportional to 99,643,690.80, 149,465,536.20 and 79,488,298.80

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Solution

The fourth proportional to 99,643,690.80, 149,465,536.20 and 79,488,298.80 is: 119,232,448.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,643,690.80 : 149,465,536.20 = 79,488,298.80 : x
  2. Step 2: Convert to fraction form
    99,643,690.80/149,465,536.20 = 79,488,298.80/x
  3. Step 3: Cross multiply
    99,643,690.80x = 149,465,536.20 × 79,488,298.80
  4. Step 4: Simplify right side
    99,643,690.80x = 11,880,761,201,767,816
  5. Step 5: Solve for x
    x = 11,880,761,201,767,816/99,643,690.80
  6. Step 6: Final answer
    x = 119,232,448.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.