Home / 742,032,002.80-1,113,048,004.20-257,357,810.80

Finding the Fourth Proportional to 742,032,002.80, 1,113,048,004.20 and 257,357,810.80

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Solution

The fourth proportional to 742,032,002.80, 1,113,048,004.20 and 257,357,810.80 is: 386,036,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,032,002.80 : 1,113,048,004.20 = 257,357,810.80 : x
  2. Step 2: Convert to fraction form
    742,032,002.80/1,113,048,004.20 = 257,357,810.80/x
  3. Step 3: Cross multiply
    742,032,002.80x = 1,113,048,004.20 × 257,357,810.80
  4. Step 4: Simplify right side
    742,032,002.80x = 286,451,597,676,221,216
  5. Step 5: Solve for x
    x = 286,451,597,676,221,216/742,032,002.80
  6. Step 6: Final answer
    x = 386,036,716.20

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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.