Home / 86,507,838.68-129,762,094.68-20,928,871.19

Finding the Fourth Proportional to 86,507,838.68, 129,762,094.68 and 20,928,871.19

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Solution

The fourth proportional to 86,507,838.68, 129,762,094.68 and 20,928,871.19 is: 31,393,388.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,507,838.68 : 129,762,094.68 = 20,928,871.19 : x
  2. Step 2: Convert to fraction form
    86,507,838.68/129,762,094.68 = 20,928,871.19/x
  3. Step 3: Cross multiply
    86,507,838.68x = 129,762,094.68 × 20,928,871.19
  4. Step 4: Simplify right side
    86,507,838.68x = 2,715,774,165,148,226
  5. Step 5: Solve for x
    x = 2,715,774,165,148,226/86,507,838.68
  6. Step 6: Final answer
    x = 31,393,388.24

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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.