Home / 86,824,569.80-130,124,880.30-66,529,209.80

Finding the Fourth Proportional to 86,824,569.80, 130,124,880.30 and 66,529,209.80

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Solution

The fourth proportional to 86,824,569.80, 130,124,880.30 and 66,529,209.80 is: 99,708,014.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,824,569.80 : 130,124,880.30 = 66,529,209.80 : x
  2. Step 2: Convert to fraction form
    86,824,569.80/130,124,880.30 = 66,529,209.80/x
  3. Step 3: Cross multiply
    86,824,569.80x = 130,124,880.30 × 66,529,209.80
  4. Step 4: Simplify right side
    86,824,569.80x = 8,657,105,461,678,586
  5. Step 5: Solve for x
    x = 8,657,105,461,678,586/86,824,569.80
  6. Step 6: Final answer
    x = 99,708,014.47

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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.