Home / 1,262,487,130.70-1,893,730,696.05-389,010,703.10

Finding the Fourth Proportional to 1,262,487,130.70, 1,893,730,696.05 and 389,010,703.10

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Solution

The fourth proportional to 1,262,487,130.70, 1,893,730,696.05 and 389,010,703.10 is: 583,516,054.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,487,130.70 : 1,893,730,696.05 = 389,010,703.10 : x
  2. Step 2: Convert to fraction form
    1,262,487,130.70/1,893,730,696.05 = 389,010,703.10/x
  3. Step 3: Cross multiply
    1,262,487,130.70x = 1,893,730,696.05 × 389,010,703.10
  4. Step 4: Simplify right side
    1,262,487,130.70x = 736,681,509,552,462,976
  5. Step 5: Solve for x
    x = 736,681,509,552,462,976/1,262,487,130.70
  6. Step 6: Final answer
    x = 583,516,054.65

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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.