Home / 696,403,440.78-961,036,715.80-383,130,928.70

Finding the Fourth Proportional to 696,403,440.78, 961,036,715.80 and 383,130,928.70

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Solution

The fourth proportional to 696,403,440.78, 961,036,715.80 and 383,130,928.70 is: 528,720,663.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,403,440.78 : 961,036,715.80 = 383,130,928.70 : x
  2. Step 2: Convert to fraction form
    696,403,440.78/961,036,715.80 = 383,130,928.70/x
  3. Step 3: Cross multiply
    696,403,440.78x = 961,036,715.80 × 383,130,928.70
  4. Step 4: Simplify right side
    696,403,440.78x = 368,202,889,439,251,904
  5. Step 5: Solve for x
    x = 368,202,889,439,251,904/696,403,440.78
  6. Step 6: Final answer
    x = 528,720,663.74

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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.