Home / 788,143,896.31-1,087,661,276.75-435,742,587.47

Finding the Fourth Proportional to 788,143,896.31, 1,087,661,276.75 and 435,742,587.47

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Solution

The fourth proportional to 788,143,896.31, 1,087,661,276.75 and 435,742,587.47 is: 601,337,320.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,143,896.31 : 1,087,661,276.75 = 435,742,587.47 : x
  2. Step 2: Convert to fraction form
    788,143,896.31/1,087,661,276.75 = 435,742,587.47/x
  3. Step 3: Cross multiply
    788,143,896.31x = 1,087,661,276.75 × 435,742,587.47
  4. Step 4: Simplify right side
    788,143,896.31x = 473,940,339,021,968,768
  5. Step 5: Solve for x
    x = 473,940,339,021,968,768/788,143,896.31
  6. Step 6: Final answer
    x = 601,337,320.81

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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.