Home / 879,172,075.47-1,213,259,835.15-482,720,743.11

Finding the Fourth Proportional to 879,172,075.47, 1,213,259,835.15 and 482,720,743.11

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Solution

The fourth proportional to 879,172,075.47, 1,213,259,835.15 and 482,720,743.11 is: 666,155,927.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,172,075.47 : 1,213,259,835.15 = 482,720,743.11 : x
  2. Step 2: Convert to fraction form
    879,172,075.47/1,213,259,835.15 = 482,720,743.11/x
  3. Step 3: Cross multiply
    879,172,075.47x = 1,213,259,835.15 × 482,720,743.11
  4. Step 4: Simplify right side
    879,172,075.47x = 585,665,689,209,124,224
  5. Step 5: Solve for x
    x = 585,665,689,209,124,224/879,172,075.47
  6. Step 6: Final answer
    x = 666,155,927.32

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