Home / 612,139,840.40-918,455,827.80-248,662,643.60

Finding the Fourth Proportional to 612,139,840.40, 918,455,827.80 and 248,662,643.60

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Solution

The fourth proportional to 612,139,840.40, 918,455,827.80 and 248,662,643.60 is: 373,093,922.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,139,840.40 : 918,455,827.80 = 248,662,643.60 : x
  2. Step 2: Convert to fraction form
    612,139,840.40/918,455,827.80 = 248,662,643.60/x
  3. Step 3: Cross multiply
    612,139,840.40x = 918,455,827.80 × 248,662,643.60
  4. Step 4: Simplify right side
    612,139,840.40x = 228,385,654,170,574,368
  5. Step 5: Solve for x
    x = 228,385,654,170,574,368/612,139,840.40
  6. Step 6: Final answer
    x = 373,093,922.50

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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.