Home / 42,768,020.80-64,152,031.20-26,328,779.20

Finding the Fourth Proportional to 42,768,020.80, 64,152,031.20 and 26,328,779.20

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Solution

The fourth proportional to 42,768,020.80, 64,152,031.20 and 26,328,779.20 is: 39,493,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,020.80 : 64,152,031.20 = 26,328,779.20 : x
  2. Step 2: Convert to fraction form
    42,768,020.80/64,152,031.20 = 26,328,779.20/x
  3. Step 3: Cross multiply
    42,768,020.80x = 64,152,031.20 × 26,328,779.20
  4. Step 4: Simplify right side
    42,768,020.80x = 1,689,044,664,696,311
  5. Step 5: Solve for x
    x = 1,689,044,664,696,311/42,768,020.80
  6. Step 6: Final answer
    x = 39,493,168.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.