Home / 918,209,763.60-1,377,683,746.20-372,993,968.40

Finding the Fourth Proportional to 918,209,763.60, 1,377,683,746.20 and 372,993,968.40

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Solution

The fourth proportional to 918,209,763.60, 1,377,683,746.20 and 372,993,968.40 is: 559,640,888.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,209,763.60 : 1,377,683,746.20 = 372,993,968.40 : x
  2. Step 2: Convert to fraction form
    918,209,763.60/1,377,683,746.20 = 372,993,968.40/x
  3. Step 3: Cross multiply
    918,209,763.60x = 1,377,683,746.20 × 372,993,968.40
  4. Step 4: Simplify right side
    918,209,763.60x = 513,867,727,695,316,416
  5. Step 5: Solve for x
    x = 513,867,727,695,316,416/918,209,763.60
  6. Step 6: Final answer
    x = 559,640,888.24

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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.