Home / 1,891,310,531.40-2,834,577,009.90-919,870,403.40

Finding the Fourth Proportional to 1,891,310,531.40, 2,834,577,009.90 and 919,870,403.40

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Solution

The fourth proportional to 1,891,310,531.40, 2,834,577,009.90 and 919,870,403.40 is: 1,378,643,778.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891,310,531.40 : 2,834,577,009.90 = 919,870,403.40 : x
  2. Step 2: Convert to fraction form
    1,891,310,531.40/2,834,577,009.90 = 919,870,403.40/x
  3. Step 3: Cross multiply
    1,891,310,531.40x = 2,834,577,009.90 × 919,870,403.40
  4. Step 4: Simplify right side
    1,891,310,531.40x = 2,607,443,497,565,079,040
  5. Step 5: Solve for x
    x = 2,607,443,497,565,079,040/1,891,310,531.40
  6. Step 6: Final answer
    x = 1,378,643,778.63

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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.