Home / 12,789,075.60-19,183,613.40-9,219,891.60

Finding the Fourth Proportional to 12,789,075.60, 19,183,613.40 and 9,219,891.60

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Solution

The fourth proportional to 12,789,075.60, 19,183,613.40 and 9,219,891.60 is: 13,829,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789,075.60 : 19,183,613.40 = 9,219,891.60 : x
  2. Step 2: Convert to fraction form
    12,789,075.60/19,183,613.40 = 9,219,891.60/x
  3. Step 3: Cross multiply
    12,789,075.60x = 19,183,613.40 × 9,219,891.60
  4. Step 4: Simplify right side
    12,789,075.60x = 176,870,836,044,307.41
  5. Step 5: Solve for x
    x = 176,870,836,044,307.41/12,789,075.60
  6. Step 6: Final answer
    x = 13,829,837.40

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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.