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Finding the Fourth Proportional to 145,886,522.60, 218,829,783.90 and 139,168,058.60

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Solution

The fourth proportional to 145,886,522.60, 218,829,783.90 and 139,168,058.60 is: 208,752,087.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,886,522.60 : 218,829,783.90 = 139,168,058.60 : x
  2. Step 2: Convert to fraction form
    145,886,522.60/218,829,783.90 = 139,168,058.60/x
  3. Step 3: Cross multiply
    145,886,522.60x = 218,829,783.90 × 139,168,058.60
  4. Step 4: Simplify right side
    145,886,522.60x = 30,454,116,189,220,536
  5. Step 5: Solve for x
    x = 30,454,116,189,220,536/145,886,522.60
  6. Step 6: Final answer
    x = 208,752,087.90

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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.