Home / 233,113,633.32-321,688,364.55-128,689,457.16

Finding the Fourth Proportional to 233,113,633.32, 321,688,364.55 and 128,689,457.16

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Solution

The fourth proportional to 233,113,633.32, 321,688,364.55 and 128,689,457.16 is: 177,586,786.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,113,633.32 : 321,688,364.55 = 128,689,457.16 : x
  2. Step 2: Convert to fraction form
    233,113,633.32/321,688,364.55 = 128,689,457.16/x
  3. Step 3: Cross multiply
    233,113,633.32x = 321,688,364.55 × 128,689,457.16
  4. Step 4: Simplify right side
    233,113,633.32x = 41,397,901,008,627,688
  5. Step 5: Solve for x
    x = 41,397,901,008,627,688/233,113,633.32
  6. Step 6: Final answer
    x = 177,586,786.41

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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.