Home / 20,912,256,075.80-31,368,384,113.70-13,172,585,547.80

Finding the Fourth Proportional to 20,912,256,075.80, 31,368,384,113.70 and 13,172,585,547.80

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Solution

The fourth proportional to 20,912,256,075.80, 31,368,384,113.70 and 13,172,585,547.80 is: 19,758,878,321.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,912,256,075.80 : 31,368,384,113.70 = 13,172,585,547.80 : x
  2. Step 2: Convert to fraction form
    20,912,256,075.80/31,368,384,113.70 = 13,172,585,547.80/x
  3. Step 3: Cross multiply
    20,912,256,075.80x = 31,368,384,113.70 × 13,172,585,547.80
  4. Step 4: Simplify right side
    20,912,256,075.80x = 413,202,723,233,963,704,320
  5. Step 5: Solve for x
    x = 413,202,723,233,963,704,320/20,912,256,075.80
  6. Step 6: Final answer
    x = 19,758,878,321.70

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1.5x scale

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.