Home / 290,995,938.16-401,514,448.08-167,212,700.44

Finding the Fourth Proportional to 290,995,938.16, 401,514,448.08 and 167,212,700.44

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Solution

The fourth proportional to 290,995,938.16, 401,514,448.08 and 167,212,700.44 is: 230,719,079.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,995,938.16 : 401,514,448.08 = 167,212,700.44 : x
  2. Step 2: Convert to fraction form
    290,995,938.16/401,514,448.08 = 167,212,700.44/x
  3. Step 3: Cross multiply
    290,995,938.16x = 401,514,448.08 × 167,212,700.44
  4. Step 4: Simplify right side
    290,995,938.16x = 67,138,315,129,132,968
  5. Step 5: Solve for x
    x = 67,138,315,129,132,968/290,995,938.16
  6. Step 6: Final answer
    x = 230,719,079.98

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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.