Home / 278,326,322.03-384,079,801.85-154,574,970.77

Finding the Fourth Proportional to 278,326,322.03, 384,079,801.85 and 154,574,970.77

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Solution

The fourth proportional to 278,326,322.03, 384,079,801.85 and 154,574,970.77 is: 213,307,615.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,326,322.03 : 384,079,801.85 = 154,574,970.77 : x
  2. Step 2: Convert to fraction form
    278,326,322.03/384,079,801.85 = 154,574,970.77/x
  3. Step 3: Cross multiply
    278,326,322.03x = 384,079,801.85 × 154,574,970.77
  4. Step 4: Simplify right side
    278,326,322.03x = 59,369,124,145,078,128
  5. Step 5: Solve for x
    x = 59,369,124,145,078,128/278,326,322.03
  6. Step 6: Final answer
    x = 213,307,615.72

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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.