Home / 21,208,852,139.77-31,816,547,070.01-7,231,205,172.26

Finding the Fourth Proportional to 21,208,852,139.77, 31,816,547,070.01 and 7,231,205,172.26

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Solution

The fourth proportional to 21,208,852,139.77, 31,816,547,070.01 and 7,231,205,172.26 is: 10,847,922,283.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,208,852,139.77 : 31,816,547,070.01 = 7,231,205,172.26 : x
  2. Step 2: Convert to fraction form
    21,208,852,139.77/31,816,547,070.01 = 7,231,205,172.26/x
  3. Step 3: Cross multiply
    21,208,852,139.77x = 31,816,547,070.01 × 7,231,205,172.26
  4. Step 4: Simplify right side
    21,208,852,139.77x = 230,071,979,736,167,907,328
  5. Step 5: Solve for x
    x = 230,071,979,736,167,907,328/21,208,852,139.77
  6. Step 6: Final answer
    x = 10,847,922,283.58

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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.