Home / 12,921,159.60-19,358,411.40-7,525,393.20

Finding the Fourth Proportional to 12,921,159.60, 19,358,411.40 and 7,525,393.20

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Solution

The fourth proportional to 12,921,159.60, 19,358,411.40 and 7,525,393.20 is: 11,274,503.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921,159.60 : 19,358,411.40 = 7,525,393.20 : x
  2. Step 2: Convert to fraction form
    12,921,159.60/19,358,411.40 = 7,525,393.20/x
  3. Step 3: Cross multiply
    12,921,159.60x = 19,358,411.40 × 7,525,393.20
  4. Step 4: Simplify right side
    12,921,159.60x = 145,679,657,512,362.47
  5. Step 5: Solve for x
    x = 145,679,657,512,362.47/12,921,159.60
  6. Step 6: Final answer
    x = 11,274,503.37

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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.