Home / 400,015,739,275.65-552,022,128,745.60-217,112,878,627.90

Finding the Fourth Proportional to 400,015,739,275.65, 552,022,128,745.60 and 217,112,878,627.90

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Solution

The fourth proportional to 400,015,739,275.65, 552,022,128,745.60 and 217,112,878,627.90 is: 299,615,994,248.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,015,739,275.65 : 552,022,128,745.60 = 217,112,878,627.90 : x
  2. Step 2: Convert to fraction form
    400,015,739,275.65/552,022,128,745.60 = 217,112,878,627.90/x
  3. Step 3: Cross multiply
    400,015,739,275.65x = 552,022,128,745.60 × 217,112,878,627.90
  4. Step 4: Simplify right side
    400,015,739,275.65x = 119,851,113,438,258,439,127,040
  5. Step 5: Solve for x
    x = 119,851,113,438,258,439,127,040/400,015,739,275.65
  6. Step 6: Final answer
    x = 299,615,994,248.84

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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.