Home / 127,461,210.40-191,191,815.60-66,869,063.20

Finding the Fourth Proportional to 127,461,210.40, 191,191,815.60 and 66,869,063.20

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Solution

The fourth proportional to 127,461,210.40, 191,191,815.60 and 66,869,063.20 is: 100,303,594.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,461,210.40 : 191,191,815.60 = 66,869,063.20 : x
  2. Step 2: Convert to fraction form
    127,461,210.40/191,191,815.60 = 66,869,063.20/x
  3. Step 3: Cross multiply
    127,461,210.40x = 191,191,815.60 × 66,869,063.20
  4. Step 4: Simplify right side
    127,461,210.40x = 12,784,817,600,679,146
  5. Step 5: Solve for x
    x = 12,784,817,600,679,146/127,461,210.40
  6. Step 6: Final answer
    x = 100,303,594.80

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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.