Home / 86,861,357.08-119,915,210.10-66,971,681.80

Finding the Fourth Proportional to 86,861,357.08, 119,915,210.10 and 66,971,681.80

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Solution

The fourth proportional to 86,861,357.08, 119,915,210.10 and 66,971,681.80 is: 92,456,802.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,861,357.08 : 119,915,210.10 = 66,971,681.80 : x
  2. Step 2: Convert to fraction form
    86,861,357.08/119,915,210.10 = 66,971,681.80/x
  3. Step 3: Cross multiply
    86,861,357.08x = 119,915,210.10 × 66,971,681.80
  4. Step 4: Simplify right side
    86,861,357.08x = 8,030,923,293,797,345
  5. Step 5: Solve for x
    x = 8,030,923,293,797,345/86,861,357.08
  6. Step 6: Final answer
    x = 92,456,802.01

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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.