Home / 979,819,918.20-1,470,401,723.70-434,952,487.80

Finding the Fourth Proportional to 979,819,918.20, 1,470,401,723.70 and 434,952,487.80

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Solution

The fourth proportional to 979,819,918.20, 1,470,401,723.70 and 434,952,487.80 is: 652,726,971.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,819,918.20 : 1,470,401,723.70 = 434,952,487.80 : x
  2. Step 2: Convert to fraction form
    979,819,918.20/1,470,401,723.70 = 434,952,487.80/x
  3. Step 3: Cross multiply
    979,819,918.20x = 1,470,401,723.70 × 434,952,487.80
  4. Step 4: Simplify right side
    979,819,918.20x = 639,554,887,788,723,200
  5. Step 5: Solve for x
    x = 639,554,887,788,723,200/979,819,918.20
  6. Step 6: Final answer
    x = 652,726,971.47

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1.5x scale

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.