Home / 813,743,395.12-1,220,500,165.02-260,973,993.52

Finding the Fourth Proportional to 813,743,395.12, 1,220,500,165.02 and 260,973,993.52

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Solution

The fourth proportional to 813,743,395.12, 1,220,500,165.02 and 260,973,993.52 is: 391,424,132.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,743,395.12 : 1,220,500,165.02 = 260,973,993.52 : x
  2. Step 2: Convert to fraction form
    813,743,395.12/1,220,500,165.02 = 260,973,993.52/x
  3. Step 3: Cross multiply
    813,743,395.12x = 1,220,500,165.02 × 260,973,993.52
  4. Step 4: Simplify right side
    813,743,395.12x = 318,518,802,157,088,448
  5. Step 5: Solve for x
    x = 318,518,802,157,088,448/813,743,395.12
  6. Step 6: Final answer
    x = 391,424,132.06

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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.