Home / 1,578,465,384.12-2,178,286,891.02-873,666,317.88

Finding the Fourth Proportional to 1,578,465,384.12, 2,178,286,891.02 and 873,666,317.88

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Solution

The fourth proportional to 1,578,465,384.12, 2,178,286,891.02 and 873,666,317.88 is: 1,205,662,098.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,465,384.12 : 2,178,286,891.02 = 873,666,317.88 : x
  2. Step 2: Convert to fraction form
    1,578,465,384.12/2,178,286,891.02 = 873,666,317.88/x
  3. Step 3: Cross multiply
    1,578,465,384.12x = 2,178,286,891.02 × 873,666,317.88
  4. Step 4: Simplify right side
    1,578,465,384.12x = 1,903,095,887,363,716,096
  5. Step 5: Solve for x
    x = 1,903,095,887,363,716,096/1,578,465,384.12
  6. Step 6: Final answer
    x = 1,205,662,098.46

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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.