Home / 421,028,417.96-630,311,126.88-245,615,096.60

Finding the Fourth Proportional to 421,028,417.96, 630,311,126.88 and 245,615,096.60

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Solution

The fourth proportional to 421,028,417.96, 630,311,126.88 and 245,615,096.60 is: 367,704,225.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,028,417.96 : 630,311,126.88 = 245,615,096.60 : x
  2. Step 2: Convert to fraction form
    421,028,417.96/630,311,126.88 = 245,615,096.60/x
  3. Step 3: Cross multiply
    421,028,417.96x = 630,311,126.88 × 245,615,096.60
  4. Step 4: Simplify right side
    421,028,417.96x = 154,813,928,316,686,048
  5. Step 5: Solve for x
    x = 154,813,928,316,686,048/421,028,417.96
  6. Step 6: Final answer
    x = 367,704,225.45

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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.