Home / 256,243,399.48-384,430,643.63-74,490,577.48

Finding the Fourth Proportional to 256,243,399.48, 384,430,643.63 and 74,490,577.48

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Solution

The fourth proportional to 256,243,399.48, 384,430,643.63 and 74,490,577.48 is: 111,754,920.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,243,399.48 : 384,430,643.63 = 74,490,577.48 : x
  2. Step 2: Convert to fraction form
    256,243,399.48/384,430,643.63 = 74,490,577.48/x
  3. Step 3: Cross multiply
    256,243,399.48x = 384,430,643.63 × 74,490,577.48
  4. Step 4: Simplify right side
    256,243,399.48x = 28,636,460,643,231,784
  5. Step 5: Solve for x
    x = 28,636,460,643,231,784/256,243,399.48
  6. Step 6: Final answer
    x = 111,754,920.13

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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.