Home / 12,778,897.16-17,634,807.76-6,977,637.68

Finding the Fourth Proportional to 12,778,897.16, 17,634,807.76 and 6,977,637.68

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Solution

The fourth proportional to 12,778,897.16, 17,634,807.76 and 6,977,637.68 is: 9,629,101.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778,897.16 : 17,634,807.76 = 6,977,637.68 : x
  2. Step 2: Convert to fraction form
    12,778,897.16/17,634,807.76 = 6,977,637.68/x
  3. Step 3: Cross multiply
    12,778,897.16x = 17,634,807.76 × 6,977,637.68
  4. Step 4: Simplify right side
    12,778,897.16x = 123,049,299,105,732.41
  5. Step 5: Solve for x
    x = 123,049,299,105,732.41/12,778,897.16
  6. Step 6: Final answer
    x = 9,629,101.60

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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.