Home / 141,793,298.70-212,689,948.05-121,385,964.30

Finding the Fourth Proportional to 141,793,298.70, 212,689,948.05 and 121,385,964.30

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Solution

The fourth proportional to 141,793,298.70, 212,689,948.05 and 121,385,964.30 is: 182,078,946.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,793,298.70 : 212,689,948.05 = 121,385,964.30 : x
  2. Step 2: Convert to fraction form
    141,793,298.70/212,689,948.05 = 121,385,964.30/x
  3. Step 3: Cross multiply
    141,793,298.70x = 212,689,948.05 × 121,385,964.30
  4. Step 4: Simplify right side
    141,793,298.70x = 25,817,574,440,966,156
  5. Step 5: Solve for x
    x = 25,817,574,440,966,156/141,793,298.70
  6. Step 6: Final answer
    x = 182,078,946.45

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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.