Home / 139,016,592.48-191,844,220.32-77,142,688.32

Finding the Fourth Proportional to 139,016,592.48, 191,844,220.32 and 77,142,688.32

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Solution

The fourth proportional to 139,016,592.48, 191,844,220.32 and 77,142,688.32 is: 106,457,643.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,016,592.48 : 191,844,220.32 = 77,142,688.32 : x
  2. Step 2: Convert to fraction form
    139,016,592.48/191,844,220.32 = 77,142,688.32/x
  3. Step 3: Cross multiply
    139,016,592.48x = 191,844,220.32 × 77,142,688.32
  4. Step 4: Simplify right side
    139,016,592.48x = 14,799,378,894,139,168
  5. Step 5: Solve for x
    x = 14,799,378,894,139,168/139,016,592.48
  6. Step 6: Final answer
    x = 106,457,643.87

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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.