Home / 13,366,019.40-18,445,124.70-7,254,446.28

Finding the Fourth Proportional to 13,366,019.40, 18,445,124.70 and 7,254,446.28

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Solution

The fourth proportional to 13,366,019.40, 18,445,124.70 and 7,254,446.28 is: 10,011,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366,019.40 : 18,445,124.70 = 7,254,446.28 : x
  2. Step 2: Convert to fraction form
    13,366,019.40/18,445,124.70 = 7,254,446.28/x
  3. Step 3: Cross multiply
    13,366,019.40x = 18,445,124.70 × 7,254,446.28
  4. Step 4: Simplify right side
    13,366,019.40x = 133,809,166,264,051.11
  5. Step 5: Solve for x
    x = 133,809,166,264,051.11/13,366,019.40
  6. Step 6: Final answer
    x = 10,011,145.60

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1.5x scale

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.