Home / 278,326,272.42-384,079,733.40-154,574,921.16

Finding the Fourth Proportional to 278,326,272.42, 384,079,733.40 and 154,574,921.16

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Solution

The fourth proportional to 278,326,272.42, 384,079,733.40 and 154,574,921.16 is: 213,307,547.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,326,272.42 : 384,079,733.40 = 154,574,921.16 : x
  2. Step 2: Convert to fraction form
    278,326,272.42/384,079,733.40 = 154,574,921.16/x
  3. Step 3: Cross multiply
    278,326,272.42x = 384,079,733.40 × 154,574,921.16
  4. Step 4: Simplify right side
    278,326,272.42x = 59,369,094,510,038,472
  5. Step 5: Solve for x
    x = 59,369,094,510,038,472/278,326,272.42
  6. Step 6: Final answer
    x = 213,307,547.27

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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.