Home / 426,962,148.30-640,495,047.06-120,254,261.04

Finding the Fourth Proportional to 426,962,148.30, 640,495,047.06 and 120,254,261.04

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Solution

The fourth proportional to 426,962,148.30, 640,495,047.06 and 120,254,261.04 is: 180,395,988.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,962,148.30 : 640,495,047.06 = 120,254,261.04 : x
  2. Step 2: Convert to fraction form
    426,962,148.30/640,495,047.06 = 120,254,261.04/x
  3. Step 3: Cross multiply
    426,962,148.30x = 640,495,047.06 × 120,254,261.04
  4. Step 4: Simplify right side
    426,962,148.30x = 77,022,258,583,980,320
  5. Step 5: Solve for x
    x = 77,022,258,583,980,320/426,962,148.30
  6. Step 6: Final answer
    x = 180,395,988.01

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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.