Home / 139,124,569.96-191,988,253.36-77,243,317.48

Finding the Fourth Proportional to 139,124,569.96, 191,988,253.36 and 77,243,317.48

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Solution

The fourth proportional to 139,124,569.96, 191,988,253.36 and 77,243,317.48 is: 106,593,749.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,124,569.96 : 191,988,253.36 = 77,243,317.48 : x
  2. Step 2: Convert to fraction form
    139,124,569.96/191,988,253.36 = 77,243,317.48/x
  3. Step 3: Cross multiply
    139,124,569.96x = 191,988,253.36 × 77,243,317.48
  4. Step 4: Simplify right side
    139,124,569.96x = 14,829,809,606,717,158
  5. Step 5: Solve for x
    x = 14,829,809,606,717,158/139,124,569.96
  6. Step 6: Final answer
    x = 106,593,749.84

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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.