Home / 147,515,762.40-221,124,344.40-86,900,287.20

Finding the Fourth Proportional to 147,515,762.40, 221,124,344.40 and 86,900,287.20

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Solution

The fourth proportional to 147,515,762.40, 221,124,344.40 and 86,900,287.20 is: 130,262,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,515,762.40 : 221,124,344.40 = 86,900,287.20 : x
  2. Step 2: Convert to fraction form
    147,515,762.40/221,124,344.40 = 86,900,287.20/x
  3. Step 3: Cross multiply
    147,515,762.40x = 221,124,344.40 × 86,900,287.20
  4. Step 4: Simplify right side
    147,515,762.40x = 19,215,769,035,271,712
  5. Step 5: Solve for x
    x = 19,215,769,035,271,712/147,515,762.40
  6. Step 6: Final answer
    x = 130,262,479.90

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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.