Home / 940,609,943.88-1,298,124,362.88-517,298,130.60

Finding the Fourth Proportional to 940,609,943.88, 1,298,124,362.88 and 517,298,130.60

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Solution

The fourth proportional to 940,609,943.88, 1,298,124,362.88 and 517,298,130.60 is: 713,916,869.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,609,943.88 : 1,298,124,362.88 = 517,298,130.60 : x
  2. Step 2: Convert to fraction form
    940,609,943.88/1,298,124,362.88 = 517,298,130.60/x
  3. Step 3: Cross multiply
    940,609,943.88x = 1,298,124,362.88 × 517,298,130.60
  4. Step 4: Simplify right side
    940,609,943.88x = 671,517,306,204,140,160
  5. Step 5: Solve for x
    x = 671,517,306,204,140,160/940,609,943.88
  6. Step 6: Final answer
    x = 713,916,869.13

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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.