Home / 1,249,058,328.80-1,872,243,800.40-472,403,890.40

Finding the Fourth Proportional to 1,249,058,328.80, 1,872,243,800.40 and 472,403,890.40

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Solution

The fourth proportional to 1,249,058,328.80, 1,872,243,800.40 and 472,403,890.40 is: 708,097,640.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,058,328.80 : 1,872,243,800.40 = 472,403,890.40 : x
  2. Step 2: Convert to fraction form
    1,249,058,328.80/1,872,243,800.40 = 472,403,890.40/x
  3. Step 3: Cross multiply
    1,249,058,328.80x = 1,872,243,800.40 × 472,403,890.40
  4. Step 4: Simplify right side
    1,249,058,328.80x = 884,455,255,086,241,024
  5. Step 5: Solve for x
    x = 884,455,255,086,241,024/1,249,058,328.80
  6. Step 6: Final answer
    x = 708,097,640.19

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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.