Home / 19,319,771.60-28,979,657.40-17,859,957.20

Finding the Fourth Proportional to 19,319,771.60, 28,979,657.40 and 17,859,957.20

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Solution

The fourth proportional to 19,319,771.60, 28,979,657.40 and 17,859,957.20 is: 26,789,935.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319,771.60 : 28,979,657.40 = 17,859,957.20 : x
  2. Step 2: Convert to fraction form
    19,319,771.60/28,979,657.40 = 17,859,957.20/x
  3. Step 3: Cross multiply
    19,319,771.60x = 28,979,657.40 × 17,859,957.20
  4. Step 4: Simplify right side
    19,319,771.60x = 517,575,440,834,663.25
  5. Step 5: Solve for x
    x = 517,575,440,834,663.25/19,319,771.60
  6. Step 6: Final answer
    x = 26,789,935.80

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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.