Home / 127,790,187.80-191,685,281.70-51,168,205.40

Finding the Fourth Proportional to 127,790,187.80, 191,685,281.70 and 51,168,205.40

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Solution

The fourth proportional to 127,790,187.80, 191,685,281.70 and 51,168,205.40 is: 76,752,308.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,790,187.80 : 191,685,281.70 = 51,168,205.40 : x
  2. Step 2: Convert to fraction form
    127,790,187.80/191,685,281.70 = 51,168,205.40/x
  3. Step 3: Cross multiply
    127,790,187.80x = 191,685,281.70 × 51,168,205.40
  4. Step 4: Simplify right side
    127,790,187.80x = 9,808,191,866,182,460
  5. Step 5: Solve for x
    x = 9,808,191,866,182,460/127,790,187.80
  6. Step 6: Final answer
    x = 76,752,308.10

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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.