Home / 149,012,274,045.13-205,637,773,649.43-84,782,997,022.51

Finding the Fourth Proportional to 149,012,274,045.13, 205,637,773,649.43 and 84,782,997,022.51

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Solution

The fourth proportional to 149,012,274,045.13, 205,637,773,649.43 and 84,782,997,022.51 is: 117,001,011,243.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,012,274,045.13 : 205,637,773,649.43 = 84,782,997,022.51 : x
  2. Step 2: Convert to fraction form
    149,012,274,045.13/205,637,773,649.43 = 84,782,997,022.51/x
  3. Step 3: Cross multiply
    149,012,274,045.13x = 205,637,773,649.43 × 84,782,997,022.51
  4. Step 4: Simplify right side
    149,012,274,045.13x = 17,434,586,751,034,181,287,936
  5. Step 5: Solve for x
    x = 17,434,586,751,034,181,287,936/149,012,274,045.13
  6. Step 6: Final answer
    x = 117,001,011,243.91

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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.