Home / 21,277,314,765-31,924,032,924.42-12,774,635,316.12

Finding the Fourth Proportional to 21,277,314,765, 31,924,032,924.42 and 12,774,635,316.12

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Solution

The fourth proportional to 21,277,314,765, 31,924,032,924.42 and 12,774,635,316.12 is: 19,166,792,564.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277,314,765 : 31,924,032,924.42 = 12,774,635,316.12 : x
  2. Step 2: Convert to fraction form
    21,277,314,765/31,924,032,924.42 = 12,774,635,316.12/x
  3. Step 3: Cross multiply
    21,277,314,765x = 31,924,032,924.42 × 12,774,635,316.12
  4. Step 4: Simplify right side
    21,277,314,765x = 407,817,878,429,273,358,336
  5. Step 5: Solve for x
    x = 407,817,878,429,273,358,336/21,277,314,765
  6. Step 6: Final answer
    x = 19,166,792,564.45

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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.