Home / 745,407,489.57-1,028,708,359.13-410,879,258.63

Finding the Fourth Proportional to 745,407,489.57, 1,028,708,359.13 and 410,879,258.63

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Solution

The fourth proportional to 745,407,489.57, 1,028,708,359.13 and 410,879,258.63 is: 567,038,745.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,407,489.57 : 1,028,708,359.13 = 410,879,258.63 : x
  2. Step 2: Convert to fraction form
    745,407,489.57/1,028,708,359.13 = 410,879,258.63/x
  3. Step 3: Cross multiply
    745,407,489.57x = 1,028,708,359.13 × 410,879,258.63
  4. Step 4: Simplify right side
    745,407,489.57x = 422,674,927,943,763,776
  5. Step 5: Solve for x
    x = 422,674,927,943,763,776/745,407,489.57
  6. Step 6: Final answer
    x = 567,038,745.73

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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.