Home / 509,963,746.80-763,182,023.40-305,638,460.40

Finding the Fourth Proportional to 509,963,746.80, 763,182,023.40 and 305,638,460.40

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Solution

The fourth proportional to 509,963,746.80, 763,182,023.40 and 305,638,460.40 is: 457,400,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,963,746.80 : 763,182,023.40 = 305,638,460.40 : x
  2. Step 2: Convert to fraction form
    509,963,746.80/763,182,023.40 = 305,638,460.40/x
  3. Step 3: Cross multiply
    509,963,746.80x = 763,182,023.40 × 305,638,460.40
  4. Step 4: Simplify right side
    509,963,746.80x = 233,257,778,636,932,736
  5. Step 5: Solve for x
    x = 233,257,778,636,932,736/509,963,746.80
  6. Step 6: Final answer
    x = 457,400,707.60

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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.