Home / 287,468,045.60-431,202,068.40-105,677,607.20

Finding the Fourth Proportional to 287,468,045.60, 431,202,068.40 and 105,677,607.20

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Solution

The fourth proportional to 287,468,045.60, 431,202,068.40 and 105,677,607.20 is: 158,516,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,468,045.60 : 431,202,068.40 = 105,677,607.20 : x
  2. Step 2: Convert to fraction form
    287,468,045.60/431,202,068.40 = 105,677,607.20/x
  3. Step 3: Cross multiply
    287,468,045.60x = 431,202,068.40 × 105,677,607.20
  4. Step 4: Simplify right side
    287,468,045.60x = 45,568,402,808,202,728
  5. Step 5: Solve for x
    x = 45,568,402,808,202,728/287,468,045.60
  6. Step 6: Final answer
    x = 158,516,410.80

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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.