Home / 787,663,668.34-1,087,037,825.08-448,586,481.05

Finding the Fourth Proportional to 787,663,668.34, 1,087,037,825.08 and 448,586,481.05

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Solution

The fourth proportional to 787,663,668.34, 1,087,037,825.08 and 448,586,481.05 is: 619,084,632.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,663,668.34 : 1,087,037,825.08 = 448,586,481.05 : x
  2. Step 2: Convert to fraction form
    787,663,668.34/1,087,037,825.08 = 448,586,481.05/x
  3. Step 3: Cross multiply
    787,663,668.34x = 1,087,037,825.08 × 448,586,481.05
  4. Step 4: Simplify right side
    787,663,668.34x = 487,630,472,722,500,544
  5. Step 5: Solve for x
    x = 487,630,472,722,500,544/787,663,668.34
  6. Step 6: Final answer
    x = 619,084,632.60

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1.5x scale

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.