Home / 287,590,925.60-431,343,866.64-105,795,588.32

Finding the Fourth Proportional to 287,590,925.60, 431,343,866.64 and 105,795,588.32

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Solution

The fourth proportional to 287,590,925.60, 431,343,866.64 and 105,795,588.32 is: 158,677,740.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,590,925.60 : 431,343,866.64 = 105,795,588.32 : x
  2. Step 2: Convert to fraction form
    287,590,925.60/431,343,866.64 = 105,795,588.32/x
  3. Step 3: Cross multiply
    287,590,925.60x = 431,343,866.64 × 105,795,588.32
  4. Step 4: Simplify right side
    287,590,925.60x = 45,634,278,139,402,416
  5. Step 5: Solve for x
    x = 45,634,278,139,402,416/287,590,925.60
  6. Step 6: Final answer
    x = 158,677,740.07

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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.