Home / 258,720,060.40-388,080,090.60-122,671,164.40

Finding the Fourth Proportional to 258,720,060.40, 388,080,090.60 and 122,671,164.40

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Solution

The fourth proportional to 258,720,060.40, 388,080,090.60 and 122,671,164.40 is: 184,006,746.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,720,060.40 : 388,080,090.60 = 122,671,164.40 : x
  2. Step 2: Convert to fraction form
    258,720,060.40/388,080,090.60 = 122,671,164.40/x
  3. Step 3: Cross multiply
    258,720,060.40x = 388,080,090.60 × 122,671,164.40
  4. Step 4: Simplify right side
    258,720,060.40x = 47,606,236,594,359,496
  5. Step 5: Solve for x
    x = 47,606,236,594,359,496/258,720,060.40
  6. Step 6: Final answer
    x = 184,006,746.60

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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.