Home / 90,991,497.60-136,487,246.40-68,316,681.60

Finding the Fourth Proportional to 90,991,497.60, 136,487,246.40 and 68,316,681.60

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Solution

The fourth proportional to 90,991,497.60, 136,487,246.40 and 68,316,681.60 is: 102,475,022.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,991,497.60 : 136,487,246.40 = 68,316,681.60 : x
  2. Step 2: Convert to fraction form
    90,991,497.60/136,487,246.40 = 68,316,681.60/x
  3. Step 3: Cross multiply
    90,991,497.60x = 136,487,246.40 × 68,316,681.60
  4. Step 4: Simplify right side
    90,991,497.60x = 9,324,355,754,769,546
  5. Step 5: Solve for x
    x = 9,324,355,754,769,546/90,991,497.60
  6. Step 6: Final answer
    x = 102,475,022.40

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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.