Home / 478,596,636.63-660,462,053.11-266,903,697.15

Finding the Fourth Proportional to 478,596,636.63, 660,462,053.11 and 266,903,697.15

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Solution

The fourth proportional to 478,596,636.63, 660,462,053.11 and 266,903,697.15 is: 368,326,374.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,596,636.63 : 660,462,053.11 = 266,903,697.15 : x
  2. Step 2: Convert to fraction form
    478,596,636.63/660,462,053.11 = 266,903,697.15/x
  3. Step 3: Cross multiply
    478,596,636.63x = 660,462,053.11 × 266,903,697.15
  4. Step 4: Simplify right side
    478,596,636.63x = 176,279,763,802,338,656
  5. Step 5: Solve for x
    x = 176,279,763,802,338,656/478,596,636.63
  6. Step 6: Final answer
    x = 368,326,374.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.