Home / 630,369,587.30-869,900,949.90-348,123,970.74

Finding the Fourth Proportional to 630,369,587.30, 869,900,949.90 and 348,123,970.74

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Solution

The fourth proportional to 630,369,587.30, 869,900,949.90 and 348,123,970.74 is: 480,406,064.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,369,587.30 : 869,900,949.90 = 348,123,970.74 : x
  2. Step 2: Convert to fraction form
    630,369,587.30/869,900,949.90 = 348,123,970.74/x
  3. Step 3: Cross multiply
    630,369,587.30x = 869,900,949.90 × 348,123,970.74
  4. Step 4: Simplify right side
    630,369,587.30x = 302,833,372,829,685,824
  5. Step 5: Solve for x
    x = 302,833,372,829,685,824/630,369,587.30
  6. Step 6: Final answer
    x = 480,406,064.84

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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.