Home / 28,109,265,905.52-42,162,413,868.96-9,220,065,421.92

Finding the Fourth Proportional to 28,109,265,905.52, 42,162,413,868.96 and 9,220,065,421.92

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Solution

The fourth proportional to 28,109,265,905.52, 42,162,413,868.96 and 9,220,065,421.92 is: 13,829,611,044.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,109,265,905.52 : 42,162,413,868.96 = 9,220,065,421.92 : x
  2. Step 2: Convert to fraction form
    28,109,265,905.52/42,162,413,868.96 = 9,220,065,421.92/x
  3. Step 3: Cross multiply
    28,109,265,905.52x = 42,162,413,868.96 × 9,220,065,421.92
  4. Step 4: Simplify right side
    28,109,265,905.52x = 388,740,214,217,878,339,584
  5. Step 5: Solve for x
    x = 388,740,214,217,878,339,584/28,109,265,905.52
  6. Step 6: Final answer
    x = 13,829,611,044.43

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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.