Home / 1,512,128,521.40-2,265,641,865.30-734,098,897.40

Finding the Fourth Proportional to 1,512,128,521.40, 2,265,641,865.30 and 734,098,897.40

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Solution

The fourth proportional to 1,512,128,521.40, 2,265,641,865.30 and 734,098,897.40 is: 1,099,909,942.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,128,521.40 : 2,265,641,865.30 = 734,098,897.40 : x
  2. Step 2: Convert to fraction form
    1,512,128,521.40/2,265,641,865.30 = 734,098,897.40/x
  3. Step 3: Cross multiply
    1,512,128,521.40x = 2,265,641,865.30 × 734,098,897.40
  4. Step 4: Simplify right side
    1,512,128,521.40x = 1,663,205,195,220,009,472
  5. Step 5: Solve for x
    x = 1,663,205,195,220,009,472/1,512,128,521.40
  6. Step 6: Final answer
    x = 1,099,909,942.63

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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.