Home / 788,143,895.31-1,087,661,275.37-435,742,586.47

Finding the Fourth Proportional to 788,143,895.31, 1,087,661,275.37 and 435,742,586.47

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Solution

The fourth proportional to 788,143,895.31, 1,087,661,275.37 and 435,742,586.47 is: 601,337,319.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,143,895.31 : 1,087,661,275.37 = 435,742,586.47 : x
  2. Step 2: Convert to fraction form
    788,143,895.31/1,087,661,275.37 = 435,742,586.47/x
  3. Step 3: Cross multiply
    788,143,895.31x = 1,087,661,275.37 × 435,742,586.47
  4. Step 4: Simplify right side
    788,143,895.31x = 473,940,337,332,982,656
  5. Step 5: Solve for x
    x = 473,940,337,332,982,656/788,143,895.31
  6. Step 6: Final answer
    x = 601,337,319.43

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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.