Home / 685,706,751.09-946,259,221.14-403,467,472.86

Finding the Fourth Proportional to 685,706,751.09, 946,259,221.14 and 403,467,472.86

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Solution

The fourth proportional to 685,706,751.09, 946,259,221.14 and 403,467,472.86 is: 556,775,642.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,706,751.09 : 946,259,221.14 = 403,467,472.86 : x
  2. Step 2: Convert to fraction form
    685,706,751.09/946,259,221.14 = 403,467,472.86/x
  3. Step 3: Cross multiply
    685,706,751.09x = 946,259,221.14 × 403,467,472.86
  4. Step 4: Simplify right side
    685,706,751.09x = 381,784,816,623,827,712
  5. Step 5: Solve for x
    x = 381,784,816,623,827,712/685,706,751.09
  6. Step 6: Final answer
    x = 556,775,642.09

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1.5x scale

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.