Home / 130,369,434.42-179,925,461.02-78,187,178.10

Finding the Fourth Proportional to 130,369,434.42, 179,925,461.02 and 78,187,178.10

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Solution

The fourth proportional to 130,369,434.42, 179,925,461.02 and 78,187,178.10 is: 107,907,686.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,369,434.42 : 179,925,461.02 = 78,187,178.10 : x
  2. Step 2: Convert to fraction form
    130,369,434.42/179,925,461.02 = 78,187,178.10/x
  3. Step 3: Cross multiply
    130,369,434.42x = 179,925,461.02 × 78,187,178.10
  4. Step 4: Simplify right side
    130,369,434.42x = 14,067,864,065,495,348
  5. Step 5: Solve for x
    x = 14,067,864,065,495,348/130,369,434.42
  6. Step 6: Final answer
    x = 107,907,686.55

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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.