Home / 420,059,095.60-630,088,643.40-363,435,991.60

Finding the Fourth Proportional to 420,059,095.60, 630,088,643.40 and 363,435,991.60

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Solution

The fourth proportional to 420,059,095.60, 630,088,643.40 and 363,435,991.60 is: 545,153,987.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,059,095.60 : 630,088,643.40 = 363,435,991.60 : x
  2. Step 2: Convert to fraction form
    420,059,095.60/630,088,643.40 = 363,435,991.60/x
  3. Step 3: Cross multiply
    420,059,095.60x = 630,088,643.40 × 363,435,991.60
  4. Step 4: Simplify right side
    420,059,095.60x = 228,996,890,909,977,792
  5. Step 5: Solve for x
    x = 228,996,890,909,977,792/420,059,095.60
  6. Step 6: Final answer
    x = 545,153,987.40

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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.