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Finding the Fourth Proportional to 228,458,868.72, 342,681,763.05 and 64,696,237.98

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Solution

The fourth proportional to 228,458,868.72, 342,681,763.05 and 64,696,237.98 is: 97,042,504.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,458,868.72 : 342,681,763.05 = 64,696,237.98 : x
  2. Step 2: Convert to fraction form
    228,458,868.72/342,681,763.05 = 64,696,237.98/x
  3. Step 3: Cross multiply
    228,458,868.72x = 342,681,763.05 × 64,696,237.98
  4. Step 4: Simplify right side
    228,458,868.72x = 22,170,220,893,688,772
  5. Step 5: Solve for x
    x = 22,170,220,893,688,772/228,458,868.72
  6. Step 6: Final answer
    x = 97,042,504.93

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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.