Home / 139,088,032.61-191,931,883.56-77,203,499.63

Finding the Fourth Proportional to 139,088,032.61, 191,931,883.56 and 77,203,499.63

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Solution

The fourth proportional to 139,088,032.61, 191,931,883.56 and 77,203,499.63 is: 106,535,500.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,088,032.61 : 191,931,883.56 = 77,203,499.63 : x
  2. Step 2: Convert to fraction form
    139,088,032.61/191,931,883.56 = 77,203,499.63/x
  3. Step 3: Cross multiply
    139,088,032.61x = 191,931,883.56 × 77,203,499.63
  4. Step 4: Simplify right side
    139,088,032.61x = 14,817,813,100,450,004
  5. Step 5: Solve for x
    x = 14,817,813,100,450,004/139,088,032.61
  6. Step 6: Final answer
    x = 106,535,500.02

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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.