Home / 426,546,051.60-639,819,077.40-103,429,923.60

Finding the Fourth Proportional to 426,546,051.60, 639,819,077.40 and 103,429,923.60

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Solution

The fourth proportional to 426,546,051.60, 639,819,077.40 and 103,429,923.60 is: 155,144,885.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,546,051.60 : 639,819,077.40 = 103,429,923.60 : x
  2. Step 2: Convert to fraction form
    426,546,051.60/639,819,077.40 = 103,429,923.60/x
  3. Step 3: Cross multiply
    426,546,051.60x = 639,819,077.40 × 103,429,923.60
  4. Step 4: Simplify right side
    426,546,051.60x = 66,176,438,293,304,480
  5. Step 5: Solve for x
    x = 66,176,438,293,304,480/426,546,051.60
  6. Step 6: Final answer
    x = 155,144,885.40

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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.