Home / 152,326,819.78-210,217,038.68-85,346,355.71

Finding the Fourth Proportional to 152,326,819.78, 210,217,038.68 and 85,346,355.71

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Solution

The fourth proportional to 152,326,819.78, 210,217,038.68 and 85,346,355.71 is: 117,781,347.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,326,819.78 : 210,217,038.68 = 85,346,355.71 : x
  2. Step 2: Convert to fraction form
    152,326,819.78/210,217,038.68 = 85,346,355.71/x
  3. Step 3: Cross multiply
    152,326,819.78x = 210,217,038.68 × 85,346,355.71
  4. Step 4: Simplify right side
    152,326,819.78x = 17,941,258,160,225,020
  5. Step 5: Solve for x
    x = 17,941,258,160,225,020/152,326,819.78
  6. Step 6: Final answer
    x = 117,781,347.94

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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.