Home / 21,688,038,055.20-32,532,057,082.80-20,769,708,007.20

Finding the Fourth Proportional to 21,688,038,055.20, 32,532,057,082.80 and 20,769,708,007.20

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Solution

The fourth proportional to 21,688,038,055.20, 32,532,057,082.80 and 20,769,708,007.20 is: 31,154,562,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,688,038,055.20 : 32,532,057,082.80 = 20,769,708,007.20 : x
  2. Step 2: Convert to fraction form
    21,688,038,055.20/32,532,057,082.80 = 20,769,708,007.20/x
  3. Step 3: Cross multiply
    21,688,038,055.20x = 32,532,057,082.80 × 20,769,708,007.20
  4. Step 4: Simplify right side
    21,688,038,055.20x = 675,681,326,483,318,636,544
  5. Step 5: Solve for x
    x = 675,681,326,483,318,636,544/21,688,038,055.20
  6. Step 6: Final answer
    x = 31,154,562,010.80

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Double scale
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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.