Home / 6,985,343.76-10,478,018.47-3,142,678.65

Finding the Fourth Proportional to 6,985,343.76, 10,478,018.47 and 3,142,678.65

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Solution

The fourth proportional to 6,985,343.76, 10,478,018.47 and 3,142,678.65 is: 4,714,019.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985,343.76 : 10,478,018.47 = 3,142,678.65 : x
  2. Step 2: Convert to fraction form
    6,985,343.76/10,478,018.47 = 3,142,678.65/x
  3. Step 3: Cross multiply
    6,985,343.76x = 10,478,018.47 × 3,142,678.65
  4. Step 4: Simplify right side
    6,985,343.76x = 32,929,044,939,974.67
  5. Step 5: Solve for x
    x = 32,929,044,939,974.67/6,985,343.76
  6. Step 6: Final answer
    x = 4,714,019.25

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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.