Home / 922,021,918.98-1,272,394,055.49-498,635,571.03

Finding the Fourth Proportional to 922,021,918.98, 1,272,394,055.49 and 498,635,571.03

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Solution

The fourth proportional to 922,021,918.98, 1,272,394,055.49 and 498,635,571.03 is: 688,119,147.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,021,918.98 : 1,272,394,055.49 = 498,635,571.03 : x
  2. Step 2: Convert to fraction form
    922,021,918.98/1,272,394,055.49 = 498,635,571.03/x
  3. Step 3: Cross multiply
    922,021,918.98x = 1,272,394,055.49 × 498,635,571.03
  4. Step 4: Simplify right side
    922,021,918.98x = 634,460,936,434,433,664
  5. Step 5: Solve for x
    x = 634,460,936,434,433,664/922,021,918.98
  6. Step 6: Final answer
    x = 688,119,147.03

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Double scale
Find fourth proportional to 922,021,919.98, 1,272,394,056.87 and 498,635,572.03
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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.