Home / 390,960,208.64-539,534,402.65-214,751,894.56

Finding the Fourth Proportional to 390,960,208.64, 539,534,402.65 and 214,751,894.56

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Solution

The fourth proportional to 390,960,208.64, 539,534,402.65 and 214,751,894.56 is: 296,362,731.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,960,208.64 : 539,534,402.65 = 214,751,894.56 : x
  2. Step 2: Convert to fraction form
    390,960,208.64/539,534,402.65 = 214,751,894.56/x
  3. Step 3: Cross multiply
    390,960,208.64x = 539,534,402.65 × 214,751,894.56
  4. Step 4: Simplify right side
    390,960,208.64x = 115,866,035,148,307,136
  5. Step 5: Solve for x
    x = 115,866,035,148,307,136/390,960,208.64
  6. Step 6: Final answer
    x = 296,362,731.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.