Home / 249,986,837.20-344,984,594.54-138,479,386

Finding the Fourth Proportional to 249,986,837.20, 344,984,594.54 and 138,479,386

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Solution

The fourth proportional to 249,986,837.20, 344,984,594.54 and 138,479,386 is: 191,103,081.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,986,837.20 : 344,984,594.54 = 138,479,386 : x
  2. Step 2: Convert to fraction form
    249,986,837.20/344,984,594.54 = 138,479,386/x
  3. Step 3: Cross multiply
    249,986,837.20x = 344,984,594.54 × 138,479,386
  4. Step 4: Simplify right side
    249,986,837.20x = 47,773,254,831,358,152
  5. Step 5: Solve for x
    x = 47,773,254,831,358,152/249,986,837.20
  6. Step 6: Final answer
    x = 191,103,081.13

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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.