Home / 660,056,746.15-990,085,302.69-245,479,399.72

Finding the Fourth Proportional to 660,056,746.15, 990,085,302.69 and 245,479,399.72

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Solution

The fourth proportional to 660,056,746.15, 990,085,302.69 and 245,479,399.72 is: 368,219,167.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,056,746.15 : 990,085,302.69 = 245,479,399.72 : x
  2. Step 2: Convert to fraction form
    660,056,746.15/990,085,302.69 = 245,479,399.72/x
  3. Step 3: Cross multiply
    660,056,746.15x = 990,085,302.69 × 245,479,399.72
  4. Step 4: Simplify right side
    660,056,746.15x = 243,045,545,775,935,712
  5. Step 5: Solve for x
    x = 243,045,545,775,935,712/660,056,746.15
  6. Step 6: Final answer
    x = 368,219,167.81

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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.