Home / 1,042,725,567.42-1,438,976,021.76-572,870,312.46

Finding the Fourth Proportional to 1,042,725,567.42, 1,438,976,021.76 and 572,870,312.46

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Solution

The fourth proportional to 1,042,725,567.42, 1,438,976,021.76 and 572,870,312.46 is: 790,569,128.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,725,567.42 : 1,438,976,021.76 = 572,870,312.46 : x
  2. Step 2: Convert to fraction form
    1,042,725,567.42/1,438,976,021.76 = 572,870,312.46/x
  3. Step 3: Cross multiply
    1,042,725,567.42x = 1,438,976,021.76 × 572,870,312.46
  4. Step 4: Simplify right side
    1,042,725,567.42x = 824,346,643,208,099,072
  5. Step 5: Solve for x
    x = 824,346,643,208,099,072/1,042,725,567.42
  6. Step 6: Final answer
    x = 790,569,128.60

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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.