Home / 30,830,967.28-42,543,634-17,077,361.68

Finding the Fourth Proportional to 30,830,967.28, 42,543,634 and 17,077,361.68

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Solution

The fourth proportional to 30,830,967.28, 42,543,634 and 17,077,361.68 is: 23,565,041.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,830,967.28 : 42,543,634 = 17,077,361.68 : x
  2. Step 2: Convert to fraction form
    30,830,967.28/42,543,634 = 17,077,361.68/x
  3. Step 3: Cross multiply
    30,830,967.28x = 42,543,634 × 17,077,361.68
  4. Step 4: Simplify right side
    30,830,967.28x = 726,533,024,999,545.12
  5. Step 5: Solve for x
    x = 726,533,024,999,545.12/30,830,967.28
  6. Step 6: Final answer
    x = 23,565,041.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.