Home / 30,239,304.80-45,358,957.20-18,886,150.40

Finding the Fourth Proportional to 30,239,304.80, 45,358,957.20 and 18,886,150.40

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Solution

The fourth proportional to 30,239,304.80, 45,358,957.20 and 18,886,150.40 is: 28,329,225.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,239,304.80 : 45,358,957.20 = 18,886,150.40 : x
  2. Step 2: Convert to fraction form
    30,239,304.80/45,358,957.20 = 18,886,150.40/x
  3. Step 3: Cross multiply
    30,239,304.80x = 45,358,957.20 × 18,886,150.40
  4. Step 4: Simplify right side
    30,239,304.80x = 856,656,087,666,362.88
  5. Step 5: Solve for x
    x = 856,656,087,666,362.88/30,239,304.80
  6. Step 6: Final answer
    x = 28,329,225.60

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1.5x scale

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.