Home / 28,109,265,885.93-42,162,413,839.83-9,220,065,402.36

Finding the Fourth Proportional to 28,109,265,885.93, 42,162,413,839.83 and 9,220,065,402.36

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Solution

The fourth proportional to 28,109,265,885.93, 42,162,413,839.83 and 9,220,065,402.36 is: 13,829,611,015.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,109,265,885.93 : 42,162,413,839.83 = 9,220,065,402.36 : x
  2. Step 2: Convert to fraction form
    28,109,265,885.93/42,162,413,839.83 = 9,220,065,402.36/x
  3. Step 3: Cross multiply
    28,109,265,885.93x = 42,162,413,839.83 × 9,220,065,402.36
  4. Step 4: Simplify right side
    28,109,265,885.93x = 388,740,213,124,601,085,952
  5. Step 5: Solve for x
    x = 388,740,213,124,601,085,952/28,109,265,885.93
  6. Step 6: Final answer
    x = 13,829,611,015.18

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1.5x scale

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.