Home / 21,280,606,682,592-29,369,426,059,660-12,947,684,956,789

Finding the Fourth Proportional to 21,280,606,682,592, 29,369,426,059,660 and 12,947,684,956,789

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Solution

The fourth proportional to 21,280,606,682,592, 29,369,426,059,660 and 12,947,684,956,789 is: 17,869,136,987,210.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,280,606,682,592 : 29,369,426,059,660 = 12,947,684,956,789 : x
  2. Step 2: Convert to fraction form
    21,280,606,682,592/29,369,426,059,660 = 12,947,684,956,789/x
  3. Step 3: Cross multiply
    21,280,606,682,592x = 29,369,426,059,660 × 12,947,684,956,789
  4. Step 4: Simplify right side
    21,280,606,682,592x = 380,266,075,982,186,631,730,823,168
  5. Step 5: Solve for x
    x = 380,266,075,982,186,631,730,823,168/21,280,606,682,592
  6. Step 6: Final answer
    x = 17,869,136,987,210.64

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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.