Home / 665,547,933.93-918,428,556.87-364,131,766.68

Finding the Fourth Proportional to 665,547,933.93, 918,428,556.87 and 364,131,766.68

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Solution

The fourth proportional to 665,547,933.93, 918,428,556.87 and 364,131,766.68 is: 502,486,742.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,547,933.93 : 918,428,556.87 = 364,131,766.68 : x
  2. Step 2: Convert to fraction form
    665,547,933.93/918,428,556.87 = 364,131,766.68/x
  3. Step 3: Cross multiply
    665,547,933.93x = 918,428,556.87 × 364,131,766.68
  4. Step 4: Simplify right side
    665,547,933.93x = 334,429,012,982,435,968
  5. Step 5: Solve for x
    x = 334,429,012,982,435,968/665,547,933.93
  6. Step 6: Final answer
    x = 502,486,742.03

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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.