Home / 81,886,465,010.40-122,829,697,515.60-67,009,518,232.80

Finding the Fourth Proportional to 81,886,465,010.40, 122,829,697,515.60 and 67,009,518,232.80

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Solution

The fourth proportional to 81,886,465,010.40, 122,829,697,515.60 and 67,009,518,232.80 is: 100,514,277,349.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,886,465,010.40 : 122,829,697,515.60 = 67,009,518,232.80 : x
  2. Step 2: Convert to fraction form
    81,886,465,010.40/122,829,697,515.60 = 67,009,518,232.80/x
  3. Step 3: Cross multiply
    81,886,465,010.40x = 122,829,697,515.60 × 67,009,518,232.80
  4. Step 4: Simplify right side
    81,886,465,010.40x = 8,230,758,855,200,908,247,040
  5. Step 5: Solve for x
    x = 8,230,758,855,200,908,247,040/81,886,465,010.40
  6. Step 6: Final answer
    x = 100,514,277,349.20

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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.