Home / 909,720,914.15-1,360,990,966.16-689,027,998.41

Finding the Fourth Proportional to 909,720,914.15, 1,360,990,966.16 and 689,027,998.41

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Solution

The fourth proportional to 909,720,914.15, 1,360,990,966.16 and 689,027,998.41 is: 1,030,822,603.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,720,914.15 : 1,360,990,966.16 = 689,027,998.41 : x
  2. Step 2: Convert to fraction form
    909,720,914.15/1,360,990,966.16 = 689,027,998.41/x
  3. Step 3: Cross multiply
    909,720,914.15x = 1,360,990,966.16 × 689,027,998.41
  4. Step 4: Simplify right side
    909,720,914.15x = 937,760,881,269,039,360
  5. Step 5: Solve for x
    x = 937,760,881,269,039,360/909,720,914.15
  6. Step 6: Final answer
    x = 1,030,822,603.59

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1.5x scale

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.