Home / 123,130,007.18-169,878,151.23-70,917,997.58

Finding the Fourth Proportional to 123,130,007.18, 169,878,151.23 and 70,917,997.58

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Solution

The fourth proportional to 123,130,007.18, 169,878,151.23 and 70,917,997.58 is: 97,843,073.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,130,007.18 : 169,878,151.23 = 70,917,997.58 : x
  2. Step 2: Convert to fraction form
    123,130,007.18/169,878,151.23 = 70,917,997.58/x
  3. Step 3: Cross multiply
    123,130,007.18x = 169,878,151.23 × 70,917,997.58
  4. Step 4: Simplify right side
    123,130,007.18x = 12,047,418,317,824,012
  5. Step 5: Solve for x
    x = 12,047,418,317,824,012/123,130,007.18
  6. Step 6: Final answer
    x = 97,843,073.30

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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.