Home / 82,779,809.40-124,169,714.10-39,626,800.20

Finding the Fourth Proportional to 82,779,809.40, 124,169,714.10 and 39,626,800.20

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Solution

The fourth proportional to 82,779,809.40, 124,169,714.10 and 39,626,800.20 is: 59,440,200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,779,809.40 : 124,169,714.10 = 39,626,800.20 : x
  2. Step 2: Convert to fraction form
    82,779,809.40/124,169,714.10 = 39,626,800.20/x
  3. Step 3: Cross multiply
    82,779,809.40x = 124,169,714.10 × 39,626,800.20
  4. Step 4: Simplify right side
    82,779,809.40x = 4,920,448,451,531,823
  5. Step 5: Solve for x
    x = 4,920,448,451,531,823/82,779,809.40
  6. Step 6: Final answer
    x = 59,440,200.30

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Double scale
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Similar ratio
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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.