Home / 839,341,075.80-1,158,270,229.86-462,989,423.32

Finding the Fourth Proportional to 839,341,075.80, 1,158,270,229.86 and 462,989,423.32

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Solution

The fourth proportional to 839,341,075.80, 1,158,270,229.86 and 462,989,423.32 is: 638,914,121.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,341,075.80 : 1,158,270,229.86 = 462,989,423.32 : x
  2. Step 2: Convert to fraction form
    839,341,075.80/1,158,270,229.86 = 462,989,423.32/x
  3. Step 3: Cross multiply
    839,341,075.80x = 1,158,270,229.86 × 462,989,423.32
  4. Step 4: Simplify right side
    839,341,075.80x = 536,266,865,771,605,184
  5. Step 5: Solve for x
    x = 536,266,865,771,605,184/839,341,075.80
  6. Step 6: Final answer
    x = 638,914,121.13

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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.