Home / 86,033,762.40-129,050,643.60-76,627,912.80

Finding the Fourth Proportional to 86,033,762.40, 129,050,643.60 and 76,627,912.80

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Solution

The fourth proportional to 86,033,762.40, 129,050,643.60 and 76,627,912.80 is: 114,941,869.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,033,762.40 : 129,050,643.60 = 76,627,912.80 : x
  2. Step 2: Convert to fraction form
    86,033,762.40/129,050,643.60 = 76,627,912.80/x
  3. Step 3: Cross multiply
    86,033,762.40x = 129,050,643.60 × 76,627,912.80
  4. Step 4: Simplify right side
    86,033,762.40x = 9,888,881,464,564,678
  5. Step 5: Solve for x
    x = 9,888,881,464,564,678/86,033,762.40
  6. Step 6: Final answer
    x = 114,941,869.20

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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.