Home / 1,428,295,695.40-2,142,443,543.10-393,316,316.20

Finding the Fourth Proportional to 1,428,295,695.40, 2,142,443,543.10 and 393,316,316.20

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Solution

The fourth proportional to 1,428,295,695.40, 2,142,443,543.10 and 393,316,316.20 is: 589,974,474.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,295,695.40 : 2,142,443,543.10 = 393,316,316.20 : x
  2. Step 2: Convert to fraction form
    1,428,295,695.40/2,142,443,543.10 = 393,316,316.20/x
  3. Step 3: Cross multiply
    1,428,295,695.40x = 2,142,443,543.10 × 393,316,316.20
  4. Step 4: Simplify right side
    1,428,295,695.40x = 842,658,002,038,567,808
  5. Step 5: Solve for x
    x = 842,658,002,038,567,808/1,428,295,695.40
  6. Step 6: Final answer
    x = 589,974,474.30

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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.