Home / 761,426,005.16-1,142,142,948.40-346,612,730.42

Finding the Fourth Proportional to 761,426,005.16, 1,142,142,948.40 and 346,612,730.42

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Solution

The fourth proportional to 761,426,005.16, 1,142,142,948.40 and 346,612,730.42 is: 519,920,889.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,426,005.16 : 1,142,142,948.40 = 346,612,730.42 : x
  2. Step 2: Convert to fraction form
    761,426,005.16/1,142,142,948.40 = 346,612,730.42/x
  3. Step 3: Cross multiply
    761,426,005.16x = 1,142,142,948.40 × 346,612,730.42
  4. Step 4: Simplify right side
    761,426,005.16x = 395,881,285,874,873,216
  5. Step 5: Solve for x
    x = 395,881,285,874,873,216/761,426,005.16
  6. Step 6: Final answer
    x = 519,920,889.48

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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.