Home / 127,526,947.20-191,290,420.80-102,017,779.20

Finding the Fourth Proportional to 127,526,947.20, 191,290,420.80 and 102,017,779.20

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Solution

The fourth proportional to 127,526,947.20, 191,290,420.80 and 102,017,779.20 is: 153,026,668.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,526,947.20 : 191,290,420.80 = 102,017,779.20 : x
  2. Step 2: Convert to fraction form
    127,526,947.20/191,290,420.80 = 102,017,779.20/x
  3. Step 3: Cross multiply
    127,526,947.20x = 191,290,420.80 × 102,017,779.20
  4. Step 4: Simplify right side
    127,526,947.20x = 19,515,023,912,249,488
  5. Step 5: Solve for x
    x = 19,515,023,912,249,488/127,526,947.20
  6. Step 6: Final answer
    x = 153,026,668.80

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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.