Home / 260,621,621,242.24-390,921,791,495.76-90,680,106,697.60

Finding the Fourth Proportional to 260,621,621,242.24, 390,921,791,495.76 and 90,680,106,697.60

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Solution

The fourth proportional to 260,621,621,242.24, 390,921,791,495.76 and 90,680,106,697.60 is: 136,016,457,860.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,621,621,242.24 : 390,921,791,495.76 = 90,680,106,697.60 : x
  2. Step 2: Convert to fraction form
    260,621,621,242.24/390,921,791,495.76 = 90,680,106,697.60/x
  3. Step 3: Cross multiply
    260,621,621,242.24x = 390,921,791,495.76 × 90,680,106,697.60
  4. Step 4: Simplify right side
    260,621,621,242.24x = 35,448,829,763,252,461,240,320
  5. Step 5: Solve for x
    x = 35,448,829,763,252,461,240,320/260,621,621,242.24
  6. Step 6: Final answer
    x = 136,016,457,860.59

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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.