Home / 153,355,262,382.96-211,638,437,115.48-85,691,495,122.80

Finding the Fourth Proportional to 153,355,262,382.96, 211,638,437,115.48 and 85,691,495,122.80

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Solution

The fourth proportional to 153,355,262,382.96, 211,638,437,115.48 and 85,691,495,122.80 is: 118,258,831,291.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,355,262,382.96 : 211,638,437,115.48 = 85,691,495,122.80 : x
  2. Step 2: Convert to fraction form
    153,355,262,382.96/211,638,437,115.48 = 85,691,495,122.80/x
  3. Step 3: Cross multiply
    153,355,262,382.96x = 211,638,437,115.48 × 85,691,495,122.80
  4. Step 4: Simplify right side
    153,355,262,382.96x = 18,135,614,101,878,170,714,112
  5. Step 5: Solve for x
    x = 18,135,614,101,878,170,714,112/153,355,262,382.96
  6. Step 6: Final answer
    x = 118,258,831,291.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.