Home / 716,192,991,477.80-988,432,997,161.80-407,619,378,752.04

Finding the Fourth Proportional to 716,192,991,477.80, 988,432,997,161.80 and 407,619,378,752.04

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Solution

The fourth proportional to 716,192,991,477.80, 988,432,997,161.80 and 407,619,378,752.04 is: 562,564,070,069.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,192,991,477.80 : 988,432,997,161.80 = 407,619,378,752.04 : x
  2. Step 2: Convert to fraction form
    716,192,991,477.80/988,432,997,161.80 = 407,619,378,752.04/x
  3. Step 3: Cross multiply
    716,192,991,477.80x = 988,432,997,161.80 × 407,619,378,752.04
  4. Step 4: Simplify right side
    716,192,991,477.80x = 402,904,444,241,109,856,550,912
  5. Step 5: Solve for x
    x = 402,904,444,241,109,856,550,912/716,192,991,477.80
  6. Step 6: Final answer
    x = 562,564,070,069.65

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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.