Home / 15,196,017,667.48-20,970,506,369.64-8,422,273,572.46

Finding the Fourth Proportional to 15,196,017,667.48, 20,970,506,369.64 and 8,422,273,572.46

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Solution

The fourth proportional to 15,196,017,667.48, 20,970,506,369.64 and 8,422,273,572.46 is: 11,622,738,632.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,196,017,667.48 : 20,970,506,369.64 = 8,422,273,572.46 : x
  2. Step 2: Convert to fraction form
    15,196,017,667.48/20,970,506,369.64 = 8,422,273,572.46/x
  3. Step 3: Cross multiply
    15,196,017,667.48x = 20,970,506,369.64 × 8,422,273,572.46
  4. Step 4: Simplify right side
    15,196,017,667.48x = 176,619,341,598,123,065,344
  5. Step 5: Solve for x
    x = 176,619,341,598,123,065,344/15,196,017,667.48
  6. Step 6: Final answer
    x = 11,622,738,632.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.