Home / 28,868,278.79-39,838,222.76-15,816,000.35

Finding the Fourth Proportional to 28,868,278.79, 39,838,222.76 and 15,816,000.35

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Solution

The fourth proportional to 28,868,278.79, 39,838,222.76 and 15,816,000.35 is: 21,826,079.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,868,278.79 : 39,838,222.76 = 15,816,000.35 : x
  2. Step 2: Convert to fraction form
    28,868,278.79/39,838,222.76 = 15,816,000.35/x
  3. Step 3: Cross multiply
    28,868,278.79x = 39,838,222.76 × 15,816,000.35
  4. Step 4: Simplify right side
    28,868,278.79x = 630,081,344,837,266.88
  5. Step 5: Solve for x
    x = 630,081,344,837,266.88/28,868,278.79
  6. Step 6: Final answer
    x = 21,826,079.40

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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.