Home / 633,911,117.25-874,426,719.83-398,589,217.41

Finding the Fourth Proportional to 633,911,117.25, 874,426,719.83 and 398,589,217.41

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Solution

The fourth proportional to 633,911,117.25, 874,426,719.83 and 398,589,217.41 is: 549,820,081.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,911,117.25 : 874,426,719.83 = 398,589,217.41 : x
  2. Step 2: Convert to fraction form
    633,911,117.25/874,426,719.83 = 398,589,217.41/x
  3. Step 3: Cross multiply
    633,911,117.25x = 874,426,719.83 × 398,589,217.41
  4. Step 4: Simplify right side
    633,911,117.25x = 348,537,061,937,440,128
  5. Step 5: Solve for x
    x = 348,537,061,937,440,128/633,911,117.25
  6. Step 6: Final answer
    x = 549,820,081.16

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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.