Home / 289,989,066.51-400,193,409.74-157,838,622.39

Finding the Fourth Proportional to 289,989,066.51, 400,193,409.74 and 157,838,622.39

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Solution

The fourth proportional to 289,989,066.51, 400,193,409.74 and 157,838,622.39 is: 217,821,924.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,989,066.51 : 400,193,409.74 = 157,838,622.39 : x
  2. Step 2: Convert to fraction form
    289,989,066.51/400,193,409.74 = 157,838,622.39/x
  3. Step 3: Cross multiply
    289,989,066.51x = 400,193,409.74 × 157,838,622.39
  4. Step 4: Simplify right side
    289,989,066.51x = 63,165,976,482,129,208
  5. Step 5: Solve for x
    x = 63,165,976,482,129,208/289,989,066.51
  6. Step 6: Final answer
    x = 217,821,924.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.