Home / 245,746,643.40-368,619,965.10-149,315,689.80

Finding the Fourth Proportional to 245,746,643.40, 368,619,965.10 and 149,315,689.80

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Solution

The fourth proportional to 245,746,643.40, 368,619,965.10 and 149,315,689.80 is: 223,973,534.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,746,643.40 : 368,619,965.10 = 149,315,689.80 : x
  2. Step 2: Convert to fraction form
    245,746,643.40/368,619,965.10 = 149,315,689.80/x
  3. Step 3: Cross multiply
    245,746,643.40x = 368,619,965.10 × 149,315,689.80
  4. Step 4: Simplify right side
    245,746,643.40x = 55,040,744,362,958,432
  5. Step 5: Solve for x
    x = 55,040,744,362,958,432/245,746,643.40
  6. Step 6: Final answer
    x = 223,973,534.70

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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.