Home / 7,978,176,002.60-11,967,264,003.90-7,549,621,980.20

Finding the Fourth Proportional to 7,978,176,002.60, 11,967,264,003.90 and 7,549,621,980.20

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Solution

The fourth proportional to 7,978,176,002.60, 11,967,264,003.90 and 7,549,621,980.20 is: 11,324,432,970.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,978,176,002.60 : 11,967,264,003.90 = 7,549,621,980.20 : x
  2. Step 2: Convert to fraction form
    7,978,176,002.60/11,967,264,003.90 = 7,549,621,980.20/x
  3. Step 3: Cross multiply
    7,978,176,002.60x = 11,967,264,003.90 × 7,549,621,980.20
  4. Step 4: Simplify right side
    7,978,176,002.60x = 90,348,319,366,699,696,128
  5. Step 5: Solve for x
    x = 90,348,319,366,699,696,128/7,978,176,002.60
  6. Step 6: Final answer
    x = 11,324,432,970.30

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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.