Home / 1,442,448,009.12-2,162,955,551.64-459,746,677.92

Finding the Fourth Proportional to 1,442,448,009.12, 2,162,955,551.64 and 459,746,677.92

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Solution

The fourth proportional to 1,442,448,009.12, 2,162,955,551.64 and 459,746,677.92 is: 689,391,661.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,448,009.12 : 2,162,955,551.64 = 459,746,677.92 : x
  2. Step 2: Convert to fraction form
    1,442,448,009.12/2,162,955,551.64 = 459,746,677.92/x
  3. Step 3: Cross multiply
    1,442,448,009.12x = 2,162,955,551.64 × 459,746,677.92
  4. Step 4: Simplify right side
    1,442,448,009.12x = 994,411,629,355,111,040
  5. Step 5: Solve for x
    x = 994,411,629,355,111,040/1,442,448,009.12
  6. Step 6: Final answer
    x = 689,391,661.31

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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.