Home / 21,008,079,421.60-31,512,119,132.40-21,008,079,421.60

Finding the Fourth Proportional to 21,008,079,421.60, 31,512,119,132.40 and 21,008,079,421.60

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Solution

The fourth proportional to 21,008,079,421.60, 31,512,119,132.40 and 21,008,079,421.60 is: 31,512,119,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,079,421.60 : 31,512,119,132.40 = 21,008,079,421.60 : x
  2. Step 2: Convert to fraction form
    21,008,079,421.60/31,512,119,132.40 = 21,008,079,421.60/x
  3. Step 3: Cross multiply
    21,008,079,421.60x = 31,512,119,132.40 × 21,008,079,421.60
  4. Step 4: Simplify right side
    21,008,079,421.60x = 662,009,101,476,380,016,640
  5. Step 5: Solve for x
    x = 662,009,101,476,380,016,640/21,008,079,421.60
  6. Step 6: Final answer
    x = 31,512,119,132.40

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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.