Home / 71,695,643,521.50-98,952,938,970.66-42,761,688,138.18

Finding the Fourth Proportional to 71,695,643,521.50, 98,952,938,970.66 and 42,761,688,138.18

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Solution

The fourth proportional to 71,695,643,521.50, 98,952,938,970.66 and 42,761,688,138.18 is: 59,018,853,988.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,695,643,521.50 : 98,952,938,970.66 = 42,761,688,138.18 : x
  2. Step 2: Convert to fraction form
    71,695,643,521.50/98,952,938,970.66 = 42,761,688,138.18/x
  3. Step 3: Cross multiply
    71,695,643,521.50x = 98,952,938,970.66 × 42,761,688,138.18
  4. Step 4: Simplify right side
    71,695,643,521.50x = 4,231,394,716,619,721,146,368
  5. Step 5: Solve for x
    x = 4,231,394,716,619,721,146,368/71,695,643,521.50
  6. Step 6: Final answer
    x = 59,018,853,988.68

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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.