Home / 258,720,518.30-387,889,457.82-156,461,822.06

Finding the Fourth Proportional to 258,720,518.30, 387,889,457.82 and 156,461,822.06

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Solution

The fourth proportional to 258,720,518.30, 387,889,457.82 and 156,461,822.06 is: 234,577,032.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,720,518.30 : 387,889,457.82 = 156,461,822.06 : x
  2. Step 2: Convert to fraction form
    258,720,518.30/387,889,457.82 = 156,461,822.06/x
  3. Step 3: Cross multiply
    258,720,518.30x = 387,889,457.82 × 156,461,822.06
  4. Step 4: Simplify right side
    258,720,518.30x = 60,689,891,328,382,712
  5. Step 5: Solve for x
    x = 60,689,891,328,382,712/258,720,518.30
  6. Step 6: Final answer
    x = 234,577,032.11

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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.