Home / 157,592,412-217,475,258.38-87,031,007.86

Finding the Fourth Proportional to 157,592,412, 217,475,258.38 and 87,031,007.86

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Solution

The fourth proportional to 157,592,412, 217,475,258.38 and 87,031,007.86 is: 120,101,537.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,592,412 : 217,475,258.38 = 87,031,007.86 : x
  2. Step 2: Convert to fraction form
    157,592,412/217,475,258.38 = 87,031,007.86/x
  3. Step 3: Cross multiply
    157,592,412x = 217,475,258.38 × 87,031,007.86
  4. Step 4: Simplify right side
    157,592,412x = 18,927,090,921,425,312
  5. Step 5: Solve for x
    x = 18,927,090,921,425,312/157,592,412
  6. Step 6: Final answer
    x = 120,101,537.13

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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.