Home / 130,741,702.86-180,421,348.95-72,009,837.30

Finding the Fourth Proportional to 130,741,702.86, 180,421,348.95 and 72,009,837.30

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Solution

The fourth proportional to 130,741,702.86, 180,421,348.95 and 72,009,837.30 is: 99,372,363.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,741,702.86 : 180,421,348.95 = 72,009,837.30 : x
  2. Step 2: Convert to fraction form
    130,741,702.86/180,421,348.95 = 72,009,837.30/x
  3. Step 3: Cross multiply
    130,741,702.86x = 180,421,348.95 × 72,009,837.30
  4. Step 4: Simplify right side
    130,741,702.86x = 12,992,111,983,336,024
  5. Step 5: Solve for x
    x = 12,992,111,983,336,024/130,741,702.86
  6. Step 6: Final answer
    x = 99,372,363.21

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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.