Home / 10,780,128,009.80-16,168,997,621.10-8,838,044,016.20

Finding the Fourth Proportional to 10,780,128,009.80, 16,168,997,621.10 and 8,838,044,016.20

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Solution

The fourth proportional to 10,780,128,009.80, 16,168,997,621.10 and 8,838,044,016.20 is: 13,256,086,805.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,128,009.80 : 16,168,997,621.10 = 8,838,044,016.20 : x
  2. Step 2: Convert to fraction form
    10,780,128,009.80/16,168,997,621.10 = 8,838,044,016.20/x
  3. Step 3: Cross multiply
    10,780,128,009.80x = 16,168,997,621.10 × 8,838,044,016.20
  4. Step 4: Simplify right side
    10,780,128,009.80x = 142,902,312,673,114,898,432
  5. Step 5: Solve for x
    x = 142,902,312,673,114,898,432/10,780,128,009.80
  6. Step 6: Final answer
    x = 13,256,086,805.57

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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.