Home / 287,044,538.40-430,566,807.60-271,927,994.40

Finding the Fourth Proportional to 287,044,538.40, 430,566,807.60 and 271,927,994.40

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Solution

The fourth proportional to 287,044,538.40, 430,566,807.60 and 271,927,994.40 is: 407,891,991.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,044,538.40 : 430,566,807.60 = 271,927,994.40 : x
  2. Step 2: Convert to fraction form
    287,044,538.40/430,566,807.60 = 271,927,994.40/x
  3. Step 3: Cross multiply
    287,044,538.40x = 430,566,807.60 × 271,927,994.40
  4. Step 4: Simplify right side
    287,044,538.40x = 117,083,168,445,878,672
  5. Step 5: Solve for x
    x = 117,083,168,445,878,672/287,044,538.40
  6. Step 6: Final answer
    x = 407,891,991.60

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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.