Home / 18,137,938.12-25,033,075.86-13,779,853

Finding the Fourth Proportional to 18,137,938.12, 25,033,075.86 and 13,779,853

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Solution

The fourth proportional to 18,137,938.12, 25,033,075.86 and 13,779,853 is: 19,018,264.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,137,938.12 : 25,033,075.86 = 13,779,853 : x
  2. Step 2: Convert to fraction form
    18,137,938.12/25,033,075.86 = 13,779,853/x
  3. Step 3: Cross multiply
    18,137,938.12x = 25,033,075.86 × 13,779,853
  4. Step 4: Simplify right side
    18,137,938.12x = 344,952,105,488,648.56
  5. Step 5: Solve for x
    x = 344,952,105,488,648.56/18,137,938.12
  6. Step 6: Final answer
    x = 19,018,264.55

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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.