Home / 977,181,297.81-1,348,519,218.51-531,145,710.62

Finding the Fourth Proportional to 977,181,297.81, 1,348,519,218.51 and 531,145,710.62

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Solution

The fourth proportional to 977,181,297.81, 1,348,519,218.51 and 531,145,710.62 is: 732,985,987.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,181,297.81 : 1,348,519,218.51 = 531,145,710.62 : x
  2. Step 2: Convert to fraction form
    977,181,297.81/1,348,519,218.51 = 531,145,710.62/x
  3. Step 3: Cross multiply
    977,181,297.81x = 1,348,519,218.51 × 531,145,710.62
  4. Step 4: Simplify right side
    977,181,297.81x = 716,260,198,593,478,400
  5. Step 5: Solve for x
    x = 716,260,198,593,478,400/977,181,297.81
  6. Step 6: Final answer
    x = 732,985,987.55

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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.