Home / 387,219,707.40-580,932,204.30-168,776,315.40

Finding the Fourth Proportional to 387,219,707.40, 580,932,204.30 and 168,776,315.40

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Solution

The fourth proportional to 387,219,707.40, 580,932,204.30 and 168,776,315.40 is: 253,209,211.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,219,707.40 : 580,932,204.30 = 168,776,315.40 : x
  2. Step 2: Convert to fraction form
    387,219,707.40/580,932,204.30 = 168,776,315.40/x
  3. Step 3: Cross multiply
    387,219,707.40x = 580,932,204.30 × 168,776,315.40
  4. Step 4: Simplify right side
    387,219,707.40x = 98,047,596,938,954,032
  5. Step 5: Solve for x
    x = 98,047,596,938,954,032/387,219,707.40
  6. Step 6: Final answer
    x = 253,209,211.89

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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.