Home / 19,005,356.21-26,249,042.87-12,883,155.89

Finding the Fourth Proportional to 19,005,356.21, 26,249,042.87 and 12,883,155.89

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Solution

The fourth proportional to 19,005,356.21, 26,249,042.87 and 12,883,155.89 is: 17,793,431.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005,356.21 : 26,249,042.87 = 12,883,155.89 : x
  2. Step 2: Convert to fraction form
    19,005,356.21/26,249,042.87 = 12,883,155.89/x
  3. Step 3: Cross multiply
    19,005,356.21x = 26,249,042.87 × 12,883,155.89
  4. Step 4: Simplify right side
    19,005,356.21x = 338,170,511,061,842
  5. Step 5: Solve for x
    x = 338,170,511,061,842/19,005,356.21
  6. Step 6: Final answer
    x = 17,793,431.88

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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.