Home / 847,092,309.90-1,169,015,775.36-470,764,759.20

Finding the Fourth Proportional to 847,092,309.90, 1,169,015,775.36 and 470,764,759.20

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Solution

The fourth proportional to 847,092,309.90, 1,169,015,775.36 and 470,764,759.20 is: 649,671,143.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,092,309.90 : 1,169,015,775.36 = 470,764,759.20 : x
  2. Step 2: Convert to fraction form
    847,092,309.90/1,169,015,775.36 = 470,764,759.20/x
  3. Step 3: Cross multiply
    847,092,309.90x = 1,169,015,775.36 × 470,764,759.20
  4. Step 4: Simplify right side
    847,092,309.90x = 550,331,429,985,997,888
  5. Step 5: Solve for x
    x = 550,331,429,985,997,888/847,092,309.90
  6. Step 6: Final answer
    x = 649,671,143.93

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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.