Home / 12,778,590.84-17,634,818.70-6,977,740.92

Finding the Fourth Proportional to 12,778,590.84, 17,634,818.70 and 6,977,740.92

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Solution

The fourth proportional to 12,778,590.84, 17,634,818.70 and 6,977,740.92 is: 9,629,480.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778,590.84 : 17,634,818.70 = 6,977,740.92 : x
  2. Step 2: Convert to fraction form
    12,778,590.84/17,634,818.70 = 6,977,740.92/x
  3. Step 3: Cross multiply
    12,778,590.84x = 17,634,818.70 × 6,977,740.92
  4. Step 4: Simplify right side
    12,778,590.84x = 123,051,196,059,771.20
  5. Step 5: Solve for x
    x = 123,051,196,059,771.20/12,778,590.84
  6. Step 6: Final answer
    x = 9,629,480.87

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1.5x scale

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.