Home / 668,196,961.48-922,222,632.90-389,738,477.08

Finding the Fourth Proportional to 668,196,961.48, 922,222,632.90 and 389,738,477.08

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Solution

The fourth proportional to 668,196,961.48, 922,222,632.90 and 389,738,477.08 is: 537,903,739.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,196,961.48 : 922,222,632.90 = 389,738,477.08 : x
  2. Step 2: Convert to fraction form
    668,196,961.48/922,222,632.90 = 389,738,477.08/x
  3. Step 3: Cross multiply
    668,196,961.48x = 922,222,632.90 × 389,738,477.08
  4. Step 4: Simplify right side
    668,196,961.48x = 359,425,644,475,153,856
  5. Step 5: Solve for x
    x = 359,425,644,475,153,856/668,196,961.48
  6. Step 6: Final answer
    x = 537,903,739.76

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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.