Home / 752,408,508.90-1,038,326,147.80-417,880,970.70

Finding the Fourth Proportional to 752,408,508.90, 1,038,326,147.80 and 417,880,970.70

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Solution

The fourth proportional to 752,408,508.90, 1,038,326,147.80 and 417,880,970.70 is: 576,677,075.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,408,508.90 : 1,038,326,147.80 = 417,880,970.70 : x
  2. Step 2: Convert to fraction form
    752,408,508.90/1,038,326,147.80 = 417,880,970.70/x
  3. Step 3: Cross multiply
    752,408,508.90x = 1,038,326,147.80 × 417,880,970.70
  4. Step 4: Simplify right side
    752,408,508.90x = 433,896,738,545,855,616
  5. Step 5: Solve for x
    x = 433,896,738,545,855,616/752,408,508.90
  6. Step 6: Final answer
    x = 576,677,075.57

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1.5x scale

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.