Home / 20,861,738,408.70-31,292,607,613.05-12,576,360,642.30

Finding the Fourth Proportional to 20,861,738,408.70, 31,292,607,613.05 and 12,576,360,642.30

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Solution

The fourth proportional to 20,861,738,408.70, 31,292,607,613.05 and 12,576,360,642.30 is: 18,864,540,963.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,861,738,408.70 : 31,292,607,613.05 = 12,576,360,642.30 : x
  2. Step 2: Convert to fraction form
    20,861,738,408.70/31,292,607,613.05 = 12,576,360,642.30/x
  3. Step 3: Cross multiply
    20,861,738,408.70x = 31,292,607,613.05 × 12,576,360,642.30
  4. Step 4: Simplify right side
    20,861,738,408.70x = 393,547,118,779,699,363,840
  5. Step 5: Solve for x
    x = 393,547,118,779,699,363,840/20,861,738,408.70
  6. Step 6: Final answer
    x = 18,864,540,963.45

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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.