Home / 515,869,570.64-711,881,306.11-315,262,061.56

Finding the Fourth Proportional to 515,869,570.64, 711,881,306.11 and 315,262,061.56

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Solution

The fourth proportional to 515,869,570.64, 711,881,306.11 and 315,262,061.56 is: 435,050,216.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,869,570.64 : 711,881,306.11 = 315,262,061.56 : x
  2. Step 2: Convert to fraction form
    515,869,570.64/711,881,306.11 = 315,262,061.56/x
  3. Step 3: Cross multiply
    515,869,570.64x = 711,881,306.11 × 315,262,061.56
  4. Step 4: Simplify right side
    515,869,570.64x = 224,429,168,150,264,032
  5. Step 5: Solve for x
    x = 224,429,168,150,264,032/515,869,570.64
  6. Step 6: Final answer
    x = 435,050,216.03

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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.