Home / 318,547,668,399.53-477,896,862,012.57-103,415,794,908.13

Finding the Fourth Proportional to 318,547,668,399.53, 477,896,862,012.57 and 103,415,794,908.13

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Solution

The fourth proportional to 318,547,668,399.53, 477,896,862,012.57 and 103,415,794,908.13 is: 155,148,157,628.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,547,668,399.53 : 477,896,862,012.57 = 103,415,794,908.13 : x
  2. Step 2: Convert to fraction form
    318,547,668,399.53/477,896,862,012.57 = 103,415,794,908.13/x
  3. Step 3: Cross multiply
    318,547,668,399.53x = 477,896,862,012.57 × 103,415,794,908.13
  4. Step 4: Simplify right side
    318,547,668,399.53x = 49,422,083,869,130,843,226,112
  5. Step 5: Solve for x
    x = 49,422,083,869,130,843,226,112/318,547,668,399.53
  6. Step 6: Final answer
    x = 155,148,157,628.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.