Home / 319,097,384.80-440,279,409-193,646,739.40

Finding the Fourth Proportional to 319,097,384.80, 440,279,409 and 193,646,739.40

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Solution

The fourth proportional to 319,097,384.80, 440,279,409 and 193,646,739.40 is: 267,186,996.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,097,384.80 : 440,279,409 = 193,646,739.40 : x
  2. Step 2: Convert to fraction form
    319,097,384.80/440,279,409 = 193,646,739.40/x
  3. Step 3: Cross multiply
    319,097,384.80x = 440,279,409 × 193,646,739.40
  4. Step 4: Simplify right side
    319,097,384.80x = 85,258,671,977,809,024
  5. Step 5: Solve for x
    x = 85,258,671,977,809,024/319,097,384.80
  6. Step 6: Final answer
    x = 267,186,996.95

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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.