Home / 689,905,009.40-1,034,857,514.10-553,856,113.40

Finding the Fourth Proportional to 689,905,009.40, 1,034,857,514.10 and 553,856,113.40

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Solution

The fourth proportional to 689,905,009.40, 1,034,857,514.10 and 553,856,113.40 is: 830,784,170.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,905,009.40 : 1,034,857,514.10 = 553,856,113.40 : x
  2. Step 2: Convert to fraction form
    689,905,009.40/1,034,857,514.10 = 553,856,113.40/x
  3. Step 3: Cross multiply
    689,905,009.40x = 1,034,857,514.10 × 553,856,113.40
  4. Step 4: Simplify right side
    689,905,009.40x = 573,162,160,682,211,712
  5. Step 5: Solve for x
    x = 573,162,160,682,211,712/689,905,009.40
  6. Step 6: Final answer
    x = 830,784,170.10

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Double scale
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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.