Home / 470,070,980.64-648,014,264.91-328,502,672.55

Finding the Fourth Proportional to 470,070,980.64, 648,014,264.91 and 328,502,672.55

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Solution

The fourth proportional to 470,070,980.64, 648,014,264.91 and 328,502,672.55 is: 452,855,901.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,070,980.64 : 648,014,264.91 = 328,502,672.55 : x
  2. Step 2: Convert to fraction form
    470,070,980.64/648,014,264.91 = 328,502,672.55/x
  3. Step 3: Cross multiply
    470,070,980.64x = 648,014,264.91 × 328,502,672.55
  4. Step 4: Simplify right side
    470,070,980.64x = 212,874,417,873,458,688
  5. Step 5: Solve for x
    x = 212,874,417,873,458,688/470,070,980.64
  6. Step 6: Final answer
    x = 452,855,901.85

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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.