Home / 142,634,981.60-213,952,472.40-51,746,760.80

Finding the Fourth Proportional to 142,634,981.60, 213,952,472.40 and 51,746,760.80

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Solution

The fourth proportional to 142,634,981.60, 213,952,472.40 and 51,746,760.80 is: 77,620,141.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,634,981.60 : 213,952,472.40 = 51,746,760.80 : x
  2. Step 2: Convert to fraction form
    142,634,981.60/213,952,472.40 = 51,746,760.80/x
  3. Step 3: Cross multiply
    142,634,981.60x = 213,952,472.40 × 51,746,760.80
  4. Step 4: Simplify right side
    142,634,981.60x = 11,071,347,411,851,402
  5. Step 5: Solve for x
    x = 11,071,347,411,851,402/142,634,981.60
  6. Step 6: Final answer
    x = 77,620,141.20

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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.