Home / 1,286,688,530.54-1,929,713,931.12-366,572,840.78

Finding the Fourth Proportional to 1,286,688,530.54, 1,929,713,931.12 and 366,572,840.78

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Solution

The fourth proportional to 1,286,688,530.54, 1,929,713,931.12 and 366,572,840.78 is: 549,768,417.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,688,530.54 : 1,929,713,931.12 = 366,572,840.78 : x
  2. Step 2: Convert to fraction form
    1,286,688,530.54/1,929,713,931.12 = 366,572,840.78/x
  3. Step 3: Cross multiply
    1,286,688,530.54x = 1,929,713,931.12 × 366,572,840.78
  4. Step 4: Simplify right side
    1,286,688,530.54x = 707,380,717,623,399,552
  5. Step 5: Solve for x
    x = 707,380,717,623,399,552/1,286,688,530.54
  6. Step 6: Final answer
    x = 549,768,417.79

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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.