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Finding the Fourth Proportional to 380,574,613.80, 570,915,064.80 and 162,223,221.60

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Solution

The fourth proportional to 380,574,613.80, 570,915,064.80 and 162,223,221.60 is: 243,357,485.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,574,613.80 : 570,915,064.80 = 162,223,221.60 : x
  2. Step 2: Convert to fraction form
    380,574,613.80/570,915,064.80 = 162,223,221.60/x
  3. Step 3: Cross multiply
    380,574,613.80x = 570,915,064.80 × 162,223,221.60
  4. Step 4: Simplify right side
    380,574,613.80x = 92,615,681,071,828,752
  5. Step 5: Solve for x
    x = 92,615,681,071,828,752/380,574,613.80
  6. Step 6: Final answer
    x = 243,357,485.53

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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.