Home / 153,924,782.20-212,413,574.21-83,359,820.53

Finding the Fourth Proportional to 153,924,782.20, 212,413,574.21 and 83,359,820.53

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Solution

The fourth proportional to 153,924,782.20, 212,413,574.21 and 83,359,820.53 is: 115,035,130.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,924,782.20 : 212,413,574.21 = 83,359,820.53 : x
  2. Step 2: Convert to fraction form
    153,924,782.20/212,413,574.21 = 83,359,820.53/x
  3. Step 3: Cross multiply
    153,924,782.20x = 212,413,574.21 × 83,359,820.53
  4. Step 4: Simplify right side
    153,924,782.20x = 17,706,757,423,333,606
  5. Step 5: Solve for x
    x = 17,706,757,423,333,606/153,924,782.20
  6. Step 6: Final answer
    x = 115,035,130.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.