Home / 443,208,666.30-664,812,999.45-407,495,831.10

Finding the Fourth Proportional to 443,208,666.30, 664,812,999.45 and 407,495,831.10

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Solution

The fourth proportional to 443,208,666.30, 664,812,999.45 and 407,495,831.10 is: 611,243,746.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,208,666.30 : 664,812,999.45 = 407,495,831.10 : x
  2. Step 2: Convert to fraction form
    443,208,666.30/664,812,999.45 = 407,495,831.10/x
  3. Step 3: Cross multiply
    443,208,666.30x = 664,812,999.45 × 407,495,831.10
  4. Step 4: Simplify right side
    443,208,666.30x = 270,908,525,736,961,632
  5. Step 5: Solve for x
    x = 270,908,525,736,961,632/443,208,666.30
  6. Step 6: Final answer
    x = 611,243,746.65

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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.