Home / 527,362,697.32-727,693,631.22-289,145,192.68

Finding the Fourth Proportional to 527,362,697.32, 727,693,631.22 and 289,145,192.68

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Solution

The fourth proportional to 527,362,697.32, 727,693,631.22 and 289,145,192.68 is: 398,983,690.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,362,697.32 : 727,693,631.22 = 289,145,192.68 : x
  2. Step 2: Convert to fraction form
    527,362,697.32/727,693,631.22 = 289,145,192.68/x
  3. Step 3: Cross multiply
    527,362,697.32x = 727,693,631.22 × 289,145,192.68
  4. Step 4: Simplify right side
    527,362,697.32x = 210,409,115,211,115,776
  5. Step 5: Solve for x
    x = 210,409,115,211,115,776/527,362,697.32
  6. Step 6: Final answer
    x = 398,983,690.50

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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.