Home / 314,928,015.20-472,392,022.80-286,710,466.40

Finding the Fourth Proportional to 314,928,015.20, 472,392,022.80 and 286,710,466.40

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Solution

The fourth proportional to 314,928,015.20, 472,392,022.80 and 286,710,466.40 is: 430,065,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,015.20 : 472,392,022.80 = 286,710,466.40 : x
  2. Step 2: Convert to fraction form
    314,928,015.20/472,392,022.80 = 286,710,466.40/x
  3. Step 3: Cross multiply
    314,928,015.20x = 472,392,022.80 × 286,710,466.40
  4. Step 4: Simplify right side
    314,928,015.20x = 135,439,737,180,627,424
  5. Step 5: Solve for x
    x = 135,439,737,180,627,424/314,928,015.20
  6. Step 6: Final answer
    x = 430,065,699.60

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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.