Home / 209,959,254.40-314,938,881.60-171,664,009.60

Finding the Fourth Proportional to 209,959,254.40, 314,938,881.60 and 171,664,009.60

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Solution

The fourth proportional to 209,959,254.40, 314,938,881.60 and 171,664,009.60 is: 257,496,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,959,254.40 : 314,938,881.60 = 171,664,009.60 : x
  2. Step 2: Convert to fraction form
    209,959,254.40/314,938,881.60 = 171,664,009.60/x
  3. Step 3: Cross multiply
    209,959,254.40x = 314,938,881.60 × 171,664,009.60
  4. Step 4: Simplify right side
    209,959,254.40x = 54,063,671,194,395,664
  5. Step 5: Solve for x
    x = 54,063,671,194,395,664/209,959,254.40
  6. Step 6: Final answer
    x = 257,496,014.40

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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.