Home / 308,409,465.34-462,615,772.65-103,939,312.06

Finding the Fourth Proportional to 308,409,465.34, 462,615,772.65 and 103,939,312.06

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Solution

The fourth proportional to 308,409,465.34, 462,615,772.65 and 103,939,312.06 is: 155,909,498.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,409,465.34 : 462,615,772.65 = 103,939,312.06 : x
  2. Step 2: Convert to fraction form
    308,409,465.34/462,615,772.65 = 103,939,312.06/x
  3. Step 3: Cross multiply
    308,409,465.34x = 462,615,772.65 × 103,939,312.06
  4. Step 4: Simplify right side
    308,409,465.34x = 48,083,965,158,120,040
  5. Step 5: Solve for x
    x = 48,083,965,158,120,040/308,409,465.34
  6. Step 6: Final answer
    x = 155,909,498.77

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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.