Home / 665,814,370.15-918,825,618.10-368,477,116.45

Finding the Fourth Proportional to 665,814,370.15, 918,825,618.10 and 368,477,116.45

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Solution

The fourth proportional to 665,814,370.15, 918,825,618.10 and 368,477,116.45 is: 508,499,409.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,814,370.15 : 918,825,618.10 = 368,477,116.45 : x
  2. Step 2: Convert to fraction form
    665,814,370.15/918,825,618.10 = 368,477,116.45/x
  3. Step 3: Cross multiply
    665,814,370.15x = 918,825,618.10 × 368,477,116.45
  4. Step 4: Simplify right side
    665,814,370.15x = 338,566,214,280,515,200
  5. Step 5: Solve for x
    x = 338,566,214,280,515,200/665,814,370.15
  6. Step 6: Final answer
    x = 508,499,409.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.