Home / 255,018,812.40-382,811,653.80-140,227,556.40

Finding the Fourth Proportional to 255,018,812.40, 382,811,653.80 and 140,227,556.40

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Solution

The fourth proportional to 255,018,812.40, 382,811,653.80 and 140,227,556.40 is: 210,497,187.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,018,812.40 : 382,811,653.80 = 140,227,556.40 : x
  2. Step 2: Convert to fraction form
    255,018,812.40/382,811,653.80 = 140,227,556.40/x
  3. Step 3: Cross multiply
    255,018,812.40x = 382,811,653.80 × 140,227,556.40
  4. Step 4: Simplify right side
    255,018,812.40x = 53,680,742,773,816,776
  5. Step 5: Solve for x
    x = 53,680,742,773,816,776/255,018,812.40
  6. Step 6: Final answer
    x = 210,497,187.52

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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.