Home / 402,991,937,421.71-556,142,597,130.15-238,334,604,034.20

Finding the Fourth Proportional to 402,991,937,421.71, 556,142,597,130.15 and 238,334,604,034.20

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Solution

The fourth proportional to 402,991,937,421.71, 556,142,597,130.15 and 238,334,604,034.20 is: 328,909,869,814.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,991,937,421.71 : 556,142,597,130.15 = 238,334,604,034.20 : x
  2. Step 2: Convert to fraction form
    402,991,937,421.71/556,142,597,130.15 = 238,334,604,034.20/x
  3. Step 3: Cross multiply
    402,991,937,421.71x = 556,142,597,130.15 × 238,334,604,034.20
  4. Step 4: Simplify right side
    402,991,937,421.71x = 132,548,025,673,565,931,044,864
  5. Step 5: Solve for x
    x = 132,548,025,673,565,931,044,864/402,991,937,421.71
  6. Step 6: Final answer
    x = 328,909,869,814.25

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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.