Home / 28,730,770.48-39,649,304.52-15,678,870.40

Finding the Fourth Proportional to 28,730,770.48, 39,649,304.52 and 15,678,870.40

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Solution

The fourth proportional to 28,730,770.48, 39,649,304.52 and 15,678,870.40 is: 21,637,300.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,730,770.48 : 39,649,304.52 = 15,678,870.40 : x
  2. Step 2: Convert to fraction form
    28,730,770.48/39,649,304.52 = 15,678,870.40/x
  3. Step 3: Cross multiply
    28,730,770.48x = 39,649,304.52 × 15,678,870.40
  4. Step 4: Simplify right side
    28,730,770.48x = 621,656,307,019,214.25
  5. Step 5: Solve for x
    x = 621,656,307,019,214.25/28,730,770.48
  6. Step 6: Final answer
    x = 21,637,300.24

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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.