Home / 670,434,839.32-1,005,694,779.30-210,391,150.36

Finding the Fourth Proportional to 670,434,839.32, 1,005,694,779.30 and 210,391,150.36

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Solution

The fourth proportional to 670,434,839.32, 1,005,694,779.30 and 210,391,150.36 is: 315,600,068.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,434,839.32 : 1,005,694,779.30 = 210,391,150.36 : x
  2. Step 2: Convert to fraction form
    670,434,839.32/1,005,694,779.30 = 210,391,150.36/x
  3. Step 3: Cross multiply
    670,434,839.32x = 1,005,694,779.30 × 210,391,150.36
  4. Step 4: Simplify right side
    670,434,839.32x = 211,589,281,527,973,312
  5. Step 5: Solve for x
    x = 211,589,281,527,973,312/670,434,839.32
  6. Step 6: Final answer
    x = 315,600,068.97

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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.