Home / 287,021,526,702.15-430,432,589,064.42-159,730,470,146.37

Finding the Fourth Proportional to 287,021,526,702.15, 430,432,589,064.42 and 159,730,470,146.37

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Solution

The fourth proportional to 287,021,526,702.15, 430,432,589,064.42 and 159,730,470,146.37 is: 239,540,220,580.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,021,526,702.15 : 430,432,589,064.42 = 159,730,470,146.37 : x
  2. Step 2: Convert to fraction form
    287,021,526,702.15/430,432,589,064.42 = 159,730,470,146.37/x
  3. Step 3: Cross multiply
    287,021,526,702.15x = 430,432,589,064.42 × 159,730,470,146.37
  4. Step 4: Simplify right side
    287,021,526,702.15x = 68,753,199,817,579,078,615,040
  5. Step 5: Solve for x
    x = 68,753,199,817,579,078,615,040/287,021,526,702.15
  6. Step 6: Final answer
    x = 239,540,220,580.48

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1.5x scale

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.