Home / 641,988,106.92-886,214,817.54-433,426,766.76

Finding the Fourth Proportional to 641,988,106.92, 886,214,817.54 and 433,426,766.76

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Solution

The fourth proportional to 641,988,106.92, 886,214,817.54 and 433,426,766.76 is: 598,312,054.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,988,106.92 : 886,214,817.54 = 433,426,766.76 : x
  2. Step 2: Convert to fraction form
    641,988,106.92/886,214,817.54 = 433,426,766.76/x
  3. Step 3: Cross multiply
    641,988,106.92x = 886,214,817.54 × 433,426,766.76
  4. Step 4: Simplify right side
    641,988,106.92x = 384,109,223,021,165,504
  5. Step 5: Solve for x
    x = 384,109,223,021,165,504/641,988,106.92
  6. Step 6: Final answer
    x = 598,312,054.20

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Double scale
Find fourth proportional to 641,988,107.92, 886,214,818.92 and 433,426,767.76
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1.5x scale

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.