Home / 906,961,606.40-1,360,442,409.60-389,303,955.20

Finding the Fourth Proportional to 906,961,606.40, 1,360,442,409.60 and 389,303,955.20

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Solution

The fourth proportional to 906,961,606.40, 1,360,442,409.60 and 389,303,955.20 is: 583,955,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,961,606.40 : 1,360,442,409.60 = 389,303,955.20 : x
  2. Step 2: Convert to fraction form
    906,961,606.40/1,360,442,409.60 = 389,303,955.20/x
  3. Step 3: Cross multiply
    906,961,606.40x = 1,360,442,409.60 × 389,303,955.20
  4. Step 4: Simplify right side
    906,961,606.40x = 529,625,610,879,098,368
  5. Step 5: Solve for x
    x = 529,625,610,879,098,368/906,961,606.40
  6. Step 6: Final answer
    x = 583,955,932.80

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1.5x scale

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.