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Finding the Fourth Proportional to 388,698,653.96, 583,049,084.34 and 112,372,360.64

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Solution

The fourth proportional to 388,698,653.96, 583,049,084.34 and 112,372,360.64 is: 168,558,859.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,698,653.96 : 583,049,084.34 = 112,372,360.64 : x
  2. Step 2: Convert to fraction form
    388,698,653.96/583,049,084.34 = 112,372,360.64/x
  3. Step 3: Cross multiply
    388,698,653.96x = 583,049,084.34 × 112,372,360.64
  4. Step 4: Simplify right side
    388,698,653.96x = 65,518,601,976,276,264
  5. Step 5: Solve for x
    x = 65,518,601,976,276,264/388,698,653.96
  6. Step 6: Final answer
    x = 168,558,859.95

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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.