Home / 719,240,922.78-992,552,474.70-389,216,061.78

Finding the Fourth Proportional to 719,240,922.78, 992,552,474.70 and 389,216,061.78

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Solution

The fourth proportional to 719,240,922.78, 992,552,474.70 and 389,216,061.78 is: 537,118,165.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,240,922.78 : 992,552,474.70 = 389,216,061.78 : x
  2. Step 2: Convert to fraction form
    719,240,922.78/992,552,474.70 = 389,216,061.78/x
  3. Step 3: Cross multiply
    719,240,922.78x = 992,552,474.70 × 389,216,061.78
  4. Step 4: Simplify right side
    719,240,922.78x = 386,317,365,312,727,104
  5. Step 5: Solve for x
    x = 386,317,365,312,727,104/719,240,922.78
  6. Step 6: Final answer
    x = 537,118,165.94

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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.