Home / 159,488,368-220,094,036.40-86,149,510.72

Finding the Fourth Proportional to 159,488,368, 220,094,036.40 and 86,149,510.72

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Solution

The fourth proportional to 159,488,368, 220,094,036.40 and 86,149,510.72 is: 118,886,372.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,488,368 : 220,094,036.40 = 86,149,510.72 : x
  2. Step 2: Convert to fraction form
    159,488,368/220,094,036.40 = 86,149,510.72/x
  3. Step 3: Cross multiply
    159,488,368x = 220,094,036.40 × 86,149,510.72
  4. Step 4: Simplify right side
    159,488,368x = 18,960,993,548,249,872
  5. Step 5: Solve for x
    x = 18,960,993,548,249,872/159,488,368
  6. Step 6: Final answer
    x = 118,886,372.63

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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.