Home / 745,416,011.40-1,118,124,017.10-200,212,657.80

Finding the Fourth Proportional to 745,416,011.40, 1,118,124,017.10 and 200,212,657.80

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Solution

The fourth proportional to 745,416,011.40, 1,118,124,017.10 and 200,212,657.80 is: 300,318,986.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,416,011.40 : 1,118,124,017.10 = 200,212,657.80 : x
  2. Step 2: Convert to fraction form
    745,416,011.40/1,118,124,017.10 = 200,212,657.80/x
  3. Step 3: Cross multiply
    745,416,011.40x = 1,118,124,017.10 × 200,212,657.80
  4. Step 4: Simplify right side
    745,416,011.40x = 223,862,581,213,603,648
  5. Step 5: Solve for x
    x = 223,862,581,213,603,648/745,416,011.40
  6. Step 6: Final answer
    x = 300,318,986.70

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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.