Home / 287,280,143.40-430,920,215.10-196,580,879.40

Finding the Fourth Proportional to 287,280,143.40, 430,920,215.10 and 196,580,879.40

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Solution

The fourth proportional to 287,280,143.40, 430,920,215.10 and 196,580,879.40 is: 294,871,319.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,280,143.40 : 430,920,215.10 = 196,580,879.40 : x
  2. Step 2: Convert to fraction form
    287,280,143.40/430,920,215.10 = 196,580,879.40/x
  3. Step 3: Cross multiply
    287,280,143.40x = 430,920,215.10 × 196,580,879.40
  4. Step 4: Simplify right side
    287,280,143.40x = 84,710,674,835,595,168
  5. Step 5: Solve for x
    x = 84,710,674,835,595,168/287,280,143.40
  6. Step 6: Final answer
    x = 294,871,319.10

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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.