Home / 28,065,567-38,730,482.73-15,188,511

Finding the Fourth Proportional to 28,065,567, 38,730,482.73 and 15,188,511

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Solution

The fourth proportional to 28,065,567, 38,730,482.73 and 15,188,511 is: 20,960,145.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,065,567 : 38,730,482.73 = 15,188,511 : x
  2. Step 2: Convert to fraction form
    28,065,567/38,730,482.73 = 15,188,511/x
  3. Step 3: Cross multiply
    28,065,567x = 38,730,482.73 × 15,188,511
  4. Step 4: Simplify right side
    28,065,567x = 588,258,362,979,915
  5. Step 5: Solve for x
    x = 588,258,362,979,915/28,065,567
  6. Step 6: Final answer
    x = 20,960,145.33

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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.