Home / 86,824,412.80-130,124,644.80-66,529,052.80

Finding the Fourth Proportional to 86,824,412.80, 130,124,644.80 and 66,529,052.80

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Solution

The fourth proportional to 86,824,412.80, 130,124,644.80 and 66,529,052.80 is: 99,707,779.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,824,412.80 : 130,124,644.80 = 66,529,052.80 : x
  2. Step 2: Convert to fraction form
    86,824,412.80/130,124,644.80 = 66,529,052.80/x
  3. Step 3: Cross multiply
    86,824,412.80x = 130,124,644.80 × 66,529,052.80
  4. Step 4: Simplify right side
    86,824,412.80x = 8,657,069,364,480,445
  5. Step 5: Solve for x
    x = 8,657,069,364,480,445/86,824,412.80
  6. Step 6: Final answer
    x = 99,707,779.01

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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.