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Finding the Fourth Proportional to 898,346,736.60, 1,347,520,104.90 and 438,047,971.80

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Solution

The fourth proportional to 898,346,736.60, 1,347,520,104.90 and 438,047,971.80 is: 657,071,957.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,346,736.60 : 1,347,520,104.90 = 438,047,971.80 : x
  2. Step 2: Convert to fraction form
    898,346,736.60/1,347,520,104.90 = 438,047,971.80/x
  3. Step 3: Cross multiply
    898,346,736.60x = 1,347,520,104.90 × 438,047,971.80
  4. Step 4: Simplify right side
    898,346,736.60x = 590,278,448,911,168,256
  5. Step 5: Solve for x
    x = 590,278,448,911,168,256/898,346,736.60
  6. Step 6: Final answer
    x = 657,071,957.70

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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.