Home / 390,986,265,063.18-586,162,908,255.36-122,236,909,254.80

Finding the Fourth Proportional to 390,986,265,063.18, 586,162,908,255.36 and 122,236,909,254.80

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Solution

The fourth proportional to 390,986,265,063.18, 586,162,908,255.36 and 122,236,909,254.80 is: 183,256,417,494.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,986,265,063.18 : 586,162,908,255.36 = 122,236,909,254.80 : x
  2. Step 2: Convert to fraction form
    390,986,265,063.18/586,162,908,255.36 = 122,236,909,254.80/x
  3. Step 3: Cross multiply
    390,986,265,063.18x = 586,162,908,255.36 × 122,236,909,254.80
  4. Step 4: Simplify right side
    390,986,265,063.18x = 71,650,742,224,940,102,057,984
  5. Step 5: Solve for x
    x = 71,650,742,224,940,102,057,984/390,986,265,063.18
  6. Step 6: Final answer
    x = 183,256,417,494.26

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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.