Home / 28,805,717.62-39,755,521.63-18,890,938.45

Finding the Fourth Proportional to 28,805,717.62, 39,755,521.63 and 18,890,938.45

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Solution

The fourth proportional to 28,805,717.62, 39,755,521.63 and 18,890,938.45 is: 26,071,876.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,805,717.62 : 39,755,521.63 = 18,890,938.45 : x
  2. Step 2: Convert to fraction form
    28,805,717.62/39,755,521.63 = 18,890,938.45/x
  3. Step 3: Cross multiply
    28,805,717.62x = 39,755,521.63 × 18,890,938.45
  4. Step 4: Simplify right side
    28,805,717.62x = 751,019,112,159,973.75
  5. Step 5: Solve for x
    x = 751,019,112,159,973.75/28,805,717.62
  6. Step 6: Final answer
    x = 26,071,876.50

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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.