Home / 28,643,577,644.82-39,526,356,114-15,782,497,885.04

Finding the Fourth Proportional to 28,643,577,644.82, 39,526,356,114 and 15,782,497,885.04

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Solution

The fourth proportional to 28,643,577,644.82, 39,526,356,114 and 15,782,497,885.04 is: 21,778,865,737.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,643,577,644.82 : 39,526,356,114 = 15,782,497,885.04 : x
  2. Step 2: Convert to fraction form
    28,643,577,644.82/39,526,356,114 = 15,782,497,885.04/x
  3. Step 3: Cross multiply
    28,643,577,644.82x = 39,526,356,114 × 15,782,497,885.04
  4. Step 4: Simplify right side
    28,643,577,644.82x = 623,824,631,772,621,963,264
  5. Step 5: Solve for x
    x = 623,824,631,772,621,963,264/28,643,577,644.82
  6. Step 6: Final answer
    x = 21,778,865,737.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.