Home / 138,050,817,909.30-206,893,168,315.47-70,895,350,039.86

Finding the Fourth Proportional to 138,050,817,909.30, 206,893,168,315.47 and 70,895,350,039.86

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Solution

The fourth proportional to 138,050,817,909.30, 206,893,168,315.47 and 70,895,350,039.86 is: 106,249,016,200.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,050,817,909.30 : 206,893,168,315.47 = 70,895,350,039.86 : x
  2. Step 2: Convert to fraction form
    138,050,817,909.30/206,893,168,315.47 = 70,895,350,039.86/x
  3. Step 3: Cross multiply
    138,050,817,909.30x = 206,893,168,315.47 × 70,895,350,039.86
  4. Step 4: Simplify right side
    138,050,817,909.30x = 14,667,763,588,580,918,689,792
  5. Step 5: Solve for x
    x = 14,667,763,588,580,918,689,792/138,050,817,909.30
  6. Step 6: Final answer
    x = 106,249,016,200.82

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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.