Home / 12,948,345-19,420,967.28-10,072,585

Finding the Fourth Proportional to 12,948,345, 19,420,967.28 and 10,072,585

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Solution

The fourth proportional to 12,948,345, 19,420,967.28 and 10,072,585 is: 15,107,671.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,345 : 19,420,967.28 = 10,072,585 : x
  2. Step 2: Convert to fraction form
    12,948,345/19,420,967.28 = 10,072,585/x
  3. Step 3: Cross multiply
    12,948,345x = 19,420,967.28 × 10,072,585
  4. Step 4: Simplify right side
    12,948,345x = 195,619,343,710,018.81
  5. Step 5: Solve for x
    x = 195,619,343,710,018.81/12,948,345
  6. Step 6: Final answer
    x = 15,107,671.58

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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.