Home / 47,123,912.40-70,629,881.40-19,830,152.40

Finding the Fourth Proportional to 47,123,912.40, 70,629,881.40 and 19,830,152.40

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Solution

The fourth proportional to 47,123,912.40, 70,629,881.40 and 19,830,152.40 is: 29,721,668.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,123,912.40 : 70,629,881.40 = 19,830,152.40 : x
  2. Step 2: Convert to fraction form
    47,123,912.40/70,629,881.40 = 19,830,152.40/x
  3. Step 3: Cross multiply
    47,123,912.40x = 70,629,881.40 × 19,830,152.40
  4. Step 4: Simplify right side
    47,123,912.40x = 1,400,601,312,155,925.25
  5. Step 5: Solve for x
    x = 1,400,601,312,155,925.25/47,123,912.40
  6. Step 6: Final answer
    x = 29,721,668.70

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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.