Home / 154,480,005.40-231,720,008.10-46,779,986.20

Finding the Fourth Proportional to 154,480,005.40, 231,720,008.10 and 46,779,986.20

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Solution

The fourth proportional to 154,480,005.40, 231,720,008.10 and 46,779,986.20 is: 70,169,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,480,005.40 : 231,720,008.10 = 46,779,986.20 : x
  2. Step 2: Convert to fraction form
    154,480,005.40/231,720,008.10 = 46,779,986.20/x
  3. Step 3: Cross multiply
    154,480,005.40x = 231,720,008.10 × 46,779,986.20
  4. Step 4: Simplify right side
    154,480,005.40x = 10,839,858,781,181,888
  5. Step 5: Solve for x
    x = 10,839,858,781,181,888/154,480,005.40
  6. Step 6: Final answer
    x = 70,169,979.30

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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.