Home / 86,459,320.31-119,316,690.48-47,300,188.64

Finding the Fourth Proportional to 86,459,320.31, 119,316,690.48 and 47,300,188.64

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Solution

The fourth proportional to 86,459,320.31, 119,316,690.48 and 47,300,188.64 is: 65,275,807.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,459,320.31 : 119,316,690.48 = 47,300,188.64 : x
  2. Step 2: Convert to fraction form
    86,459,320.31/119,316,690.48 = 47,300,188.64/x
  3. Step 3: Cross multiply
    86,459,320.31x = 119,316,690.48 × 47,300,188.64
  4. Step 4: Simplify right side
    86,459,320.31x = 5,643,701,967,007,909
  5. Step 5: Solve for x
    x = 5,643,701,967,007,909/86,459,320.31
  6. Step 6: Final answer
    x = 65,275,807.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.