Home / 742,096,039.40-1,113,144,059.10-257,470,836.20

Finding the Fourth Proportional to 742,096,039.40, 1,113,144,059.10 and 257,470,836.20

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Solution

The fourth proportional to 742,096,039.40, 1,113,144,059.10 and 257,470,836.20 is: 386,206,254.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,096,039.40 : 1,113,144,059.10 = 257,470,836.20 : x
  2. Step 2: Convert to fraction form
    742,096,039.40/1,113,144,059.10 = 257,470,836.20/x
  3. Step 3: Cross multiply
    742,096,039.40x = 1,113,144,059.10 × 257,470,836.20
  4. Step 4: Simplify right side
    742,096,039.40x = 286,602,131,707,539,168
  5. Step 5: Solve for x
    x = 286,602,131,707,539,168/742,096,039.40
  6. Step 6: Final answer
    x = 386,206,254.30

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Double scale
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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.