Home / 123,130,004.68-169,878,147.78-70,917,995.08

Finding the Fourth Proportional to 123,130,004.68, 169,878,147.78 and 70,917,995.08

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Solution

The fourth proportional to 123,130,004.68, 169,878,147.78 and 70,917,995.08 is: 97,843,069.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,130,004.68 : 169,878,147.78 = 70,917,995.08 : x
  2. Step 2: Convert to fraction form
    123,130,004.68/169,878,147.78 = 70,917,995.08/x
  3. Step 3: Cross multiply
    123,130,004.68x = 169,878,147.78 × 70,917,995.08
  4. Step 4: Simplify right side
    123,130,004.68x = 12,047,417,648,461,552
  5. Step 5: Solve for x
    x = 12,047,417,648,461,552/123,130,004.68
  6. Step 6: Final answer
    x = 97,843,069.85

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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.