Home / 209,957,492-314,989,382.04-64,398,458.96

Finding the Fourth Proportional to 209,957,492, 314,989,382.04 and 64,398,458.96

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Solution

The fourth proportional to 209,957,492, 314,989,382.04 and 64,398,458.96 is: 96,613,988.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,957,492 : 314,989,382.04 = 64,398,458.96 : x
  2. Step 2: Convert to fraction form
    209,957,492/314,989,382.04 = 64,398,458.96/x
  3. Step 3: Cross multiply
    209,957,492x = 314,989,382.04 × 64,398,458.96
  4. Step 4: Simplify right side
    209,957,492x = 20,284,830,792,138,704
  5. Step 5: Solve for x
    x = 20,284,830,792,138,704/209,957,492
  6. Step 6: Final answer
    x = 96,613,988.86

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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.