Home / 426,758,056.07-640,228,459.01-127,650,475.76

Finding the Fourth Proportional to 426,758,056.07, 640,228,459.01 and 127,650,475.76

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Solution

The fourth proportional to 426,758,056.07, 640,228,459.01 and 127,650,475.76 is: 191,503,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,758,056.07 : 640,228,459.01 = 127,650,475.76 : x
  2. Step 2: Convert to fraction form
    426,758,056.07/640,228,459.01 = 127,650,475.76/x
  3. Step 3: Cross multiply
    426,758,056.07x = 640,228,459.01 × 127,650,475.76
  4. Step 4: Simplify right side
    426,758,056.07x = 81,725,467,383,878,768
  5. Step 5: Solve for x
    x = 81,725,467,383,878,768/426,758,056.07
  6. Step 6: Final answer
    x = 191,503,045.40

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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.