Home / 918,209,809.60-1,377,683,815.20-372,994,014.40

Finding the Fourth Proportional to 918,209,809.60, 1,377,683,815.20 and 372,994,014.40

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Solution

The fourth proportional to 918,209,809.60, 1,377,683,815.20 and 372,994,014.40 is: 559,640,957.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,209,809.60 : 1,377,683,815.20 = 372,994,014.40 : x
  2. Step 2: Convert to fraction form
    918,209,809.60/1,377,683,815.20 = 372,994,014.40/x
  3. Step 3: Cross multiply
    918,209,809.60x = 1,377,683,815.20 × 372,994,014.40
  4. Step 4: Simplify right side
    918,209,809.60x = 513,867,816,805,355,712
  5. Step 5: Solve for x
    x = 513,867,816,805,355,712/918,209,809.60
  6. Step 6: Final answer
    x = 559,640,957.25

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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.