Home / 289,353,614.04-431,843,754.98-261,427,914.72

Finding the Fourth Proportional to 289,353,614.04, 431,843,754.98 and 261,427,914.72

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Solution

The fourth proportional to 289,353,614.04, 431,843,754.98 and 261,427,914.72 is: 390,166,242.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,353,614.04 : 431,843,754.98 = 261,427,914.72 : x
  2. Step 2: Convert to fraction form
    289,353,614.04/431,843,754.98 = 261,427,914.72/x
  3. Step 3: Cross multiply
    289,353,614.04x = 431,843,754.98 × 261,427,914.72
  4. Step 4: Simplify right side
    289,353,614.04x = 112,896,012,349,924,352
  5. Step 5: Solve for x
    x = 112,896,012,349,924,352/289,353,614.04
  6. Step 6: Final answer
    x = 390,166,242.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.