Home / 78,480,656,772.66-117,548,766,700.18-64,880,805,840.23

Finding the Fourth Proportional to 78,480,656,772.66, 117,548,766,700.18 and 64,880,805,840.23

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Solution

The fourth proportional to 78,480,656,772.66, 117,548,766,700.18 and 64,880,805,840.23 is: 97,178,833,902.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,480,656,772.66 : 117,548,766,700.18 = 64,880,805,840.23 : x
  2. Step 2: Convert to fraction form
    78,480,656,772.66/117,548,766,700.18 = 64,880,805,840.23/x
  3. Step 3: Cross multiply
    78,480,656,772.66x = 117,548,766,700.18 × 64,880,805,840.23
  4. Step 4: Simplify right side
    78,480,656,772.66x = 7,626,658,709,032,990,146,560
  5. Step 5: Solve for x
    x = 7,626,658,709,032,990,146,560/78,480,656,772.66
  6. Step 6: Final answer
    x = 97,178,833,902.04

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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.