Home / 30,186,020.40-45,279,030.60-28,060,256.40

Finding the Fourth Proportional to 30,186,020.40, 45,279,030.60 and 28,060,256.40

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Solution

The fourth proportional to 30,186,020.40, 45,279,030.60 and 28,060,256.40 is: 42,090,384.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,186,020.40 : 45,279,030.60 = 28,060,256.40 : x
  2. Step 2: Convert to fraction form
    30,186,020.40/45,279,030.60 = 28,060,256.40/x
  3. Step 3: Cross multiply
    30,186,020.40x = 45,279,030.60 × 28,060,256.40
  4. Step 4: Simplify right side
    30,186,020.40x = 1,270,541,208,179,445.75
  5. Step 5: Solve for x
    x = 1,270,541,208,179,445.75/30,186,020.40
  6. Step 6: Final answer
    x = 42,090,384.60

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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.