Home / 28,156,896,005.20-42,235,344,007.80-15,096,201,989.20

Finding the Fourth Proportional to 28,156,896,005.20, 42,235,344,007.80 and 15,096,201,989.20

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Solution

The fourth proportional to 28,156,896,005.20, 42,235,344,007.80 and 15,096,201,989.20 is: 22,644,302,983.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156,896,005.20 : 42,235,344,007.80 = 15,096,201,989.20 : x
  2. Step 2: Convert to fraction form
    28,156,896,005.20/42,235,344,007.80 = 15,096,201,989.20/x
  3. Step 3: Cross multiply
    28,156,896,005.20x = 42,235,344,007.80 × 15,096,201,989.20
  4. Step 4: Simplify right side
    28,156,896,005.20x = 637,593,284,225,096,744,960
  5. Step 5: Solve for x
    x = 637,593,284,225,096,744,960/28,156,896,005.20
  6. Step 6: Final answer
    x = 22,644,302,983.80

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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.