Home / 690,039,361.02-1,035,382,265.61-340,094,661.24

Finding the Fourth Proportional to 690,039,361.02, 1,035,382,265.61 and 340,094,661.24

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Solution

The fourth proportional to 690,039,361.02, 1,035,382,265.61 and 340,094,661.24 is: 510,301,296.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,039,361.02 : 1,035,382,265.61 = 340,094,661.24 : x
  2. Step 2: Convert to fraction form
    690,039,361.02/1,035,382,265.61 = 340,094,661.24/x
  3. Step 3: Cross multiply
    690,039,361.02x = 1,035,382,265.61 × 340,094,661.24
  4. Step 4: Simplify right side
    690,039,361.02x = 352,127,980,876,536,640
  5. Step 5: Solve for x
    x = 352,127,980,876,536,640/690,039,361.02
  6. Step 6: Final answer
    x = 510,301,296.95

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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.