Home / 1,087,660,917.70-1,630,329,811.40-620,316,034.38

Finding the Fourth Proportional to 1,087,660,917.70, 1,630,329,811.40 and 620,316,034.38

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Solution

The fourth proportional to 1,087,660,917.70, 1,630,329,811.40 and 620,316,034.38 is: 929,811,586.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,660,917.70 : 1,630,329,811.40 = 620,316,034.38 : x
  2. Step 2: Convert to fraction form
    1,087,660,917.70/1,630,329,811.40 = 620,316,034.38/x
  3. Step 3: Cross multiply
    1,087,660,917.70x = 1,630,329,811.40 × 620,316,034.38
  4. Step 4: Simplify right side
    1,087,660,917.70x = 1,011,319,723,340,692,096
  5. Step 5: Solve for x
    x = 1,011,319,723,340,692,096/1,087,660,917.70
  6. Step 6: Final answer
    x = 929,811,586.39

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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.