Home / 30,506,888.40-42,102,102.32-17,278,418.40

Finding the Fourth Proportional to 30,506,888.40, 42,102,102.32 and 17,278,418.40

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Solution

The fourth proportional to 30,506,888.40, 42,102,102.32 and 17,278,418.40 is: 23,845,687.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,506,888.40 : 42,102,102.32 = 17,278,418.40 : x
  2. Step 2: Convert to fraction form
    30,506,888.40/42,102,102.32 = 17,278,418.40/x
  3. Step 3: Cross multiply
    30,506,888.40x = 42,102,102.32 × 17,278,418.40
  4. Step 4: Simplify right side
    30,506,888.40x = 727,457,739,404,570.62
  5. Step 5: Solve for x
    x = 727,457,739,404,570.62/30,506,888.40
  6. Step 6: Final answer
    x = 23,845,687.89

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1.5x scale

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.