Home / 256,607,999.60-384,911,999.40-159,673,161.20

Finding the Fourth Proportional to 256,607,999.60, 384,911,999.40 and 159,673,161.20

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Solution

The fourth proportional to 256,607,999.60, 384,911,999.40 and 159,673,161.20 is: 239,509,741.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,607,999.60 : 384,911,999.40 = 159,673,161.20 : x
  2. Step 2: Convert to fraction form
    256,607,999.60/384,911,999.40 = 159,673,161.20/x
  3. Step 3: Cross multiply
    256,607,999.60x = 384,911,999.40 × 159,673,161.20
  4. Step 4: Simplify right side
    256,607,999.60x = 61,460,115,728,010,496
  5. Step 5: Solve for x
    x = 61,460,115,728,010,496/256,607,999.60
  6. Step 6: Final answer
    x = 239,509,741.80

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1.5x scale

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.