Home / 563,928,979.20-778,235,410.08-316,428,638.64

Finding the Fourth Proportional to 563,928,979.20, 778,235,410.08 and 316,428,638.64

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Solution

The fourth proportional to 563,928,979.20, 778,235,410.08 and 316,428,638.64 is: 436,679,050.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,928,979.20 : 778,235,410.08 = 316,428,638.64 : x
  2. Step 2: Convert to fraction form
    563,928,979.20/778,235,410.08 = 316,428,638.64/x
  3. Step 3: Cross multiply
    563,928,979.20x = 778,235,410.08 × 316,428,638.64
  4. Step 4: Simplify right side
    563,928,979.20x = 246,255,971,353,056,544
  5. Step 5: Solve for x
    x = 246,255,971,353,056,544/563,928,979.20
  6. Step 6: Final answer
    x = 436,679,050.80

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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.