Home / 852,326,277.40-1,278,489,416.10-393,161,253.40

Finding the Fourth Proportional to 852,326,277.40, 1,278,489,416.10 and 393,161,253.40

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Solution

The fourth proportional to 852,326,277.40, 1,278,489,416.10 and 393,161,253.40 is: 589,741,880.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,326,277.40 : 1,278,489,416.10 = 393,161,253.40 : x
  2. Step 2: Convert to fraction form
    852,326,277.40/1,278,489,416.10 = 393,161,253.40/x
  3. Step 3: Cross multiply
    852,326,277.40x = 1,278,489,416.10 × 393,161,253.40
  4. Step 4: Simplify right side
    852,326,277.40x = 502,652,501,292,510,080
  5. Step 5: Solve for x
    x = 502,652,501,292,510,080/852,326,277.40
  6. Step 6: Final answer
    x = 589,741,880.10

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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.