Home / 290,018,704.23-400,234,317.62-157,868,320.41

Finding the Fourth Proportional to 290,018,704.23, 400,234,317.62 and 157,868,320.41

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Solution

The fourth proportional to 290,018,704.23, 400,234,317.62 and 157,868,320.41 is: 217,862,912.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,018,704.23 : 400,234,317.62 = 157,868,320.41 : x
  2. Step 2: Convert to fraction form
    290,018,704.23/400,234,317.62 = 157,868,320.41/x
  3. Step 3: Cross multiply
    290,018,704.23x = 400,234,317.62 × 157,868,320.41
  4. Step 4: Simplify right side
    290,018,704.23x = 63,184,319,492,322,528
  5. Step 5: Solve for x
    x = 63,184,319,492,322,528/290,018,704.23
  6. Step 6: Final answer
    x = 217,862,912.19

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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.