Home / 387,219,742.40-580,932,256.80-168,776,350.40

Finding the Fourth Proportional to 387,219,742.40, 580,932,256.80 and 168,776,350.40

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Solution

The fourth proportional to 387,219,742.40, 580,932,256.80 and 168,776,350.40 is: 253,209,264.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,219,742.40 : 580,932,256.80 = 168,776,350.40 : x
  2. Step 2: Convert to fraction form
    387,219,742.40/580,932,256.80 = 168,776,350.40/x
  3. Step 3: Cross multiply
    387,219,742.40x = 580,932,256.80 × 168,776,350.40
  4. Step 4: Simplify right side
    387,219,742.40x = 98,047,626,132,339,584
  5. Step 5: Solve for x
    x = 98,047,626,132,339,584/387,219,742.40
  6. Step 6: Final answer
    x = 253,209,264.40

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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.