Home / 72,119,529.36-99,513,942.53-40,746,130.92

Finding the Fourth Proportional to 72,119,529.36, 99,513,942.53 and 40,746,130.92

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Solution

The fourth proportional to 72,119,529.36, 99,513,942.53 and 40,746,130.92 is: 56,223,441.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,119,529.36 : 99,513,942.53 = 40,746,130.92 : x
  2. Step 2: Convert to fraction form
    72,119,529.36/99,513,942.53 = 40,746,130.92/x
  3. Step 3: Cross multiply
    72,119,529.36x = 99,513,942.53 × 40,746,130.92
  4. Step 4: Simplify right side
    72,119,529.36x = 4,054,808,130,489,006
  5. Step 5: Solve for x
    x = 4,054,808,130,489,006/72,119,529.36
  6. Step 6: Final answer
    x = 56,223,441.37

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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.