Home / 713,139,817.60-1,069,709,726.40-651,917,814.40

Finding the Fourth Proportional to 713,139,817.60, 1,069,709,726.40 and 651,917,814.40

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Solution

The fourth proportional to 713,139,817.60, 1,069,709,726.40 and 651,917,814.40 is: 977,876,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,139,817.60 : 1,069,709,726.40 = 651,917,814.40 : x
  2. Step 2: Convert to fraction form
    713,139,817.60/1,069,709,726.40 = 651,917,814.40/x
  3. Step 3: Cross multiply
    713,139,817.60x = 1,069,709,726.40 × 651,917,814.40
  4. Step 4: Simplify right side
    713,139,817.60x = 697,362,826,877,109,888
  5. Step 5: Solve for x
    x = 697,362,826,877,109,888/713,139,817.60
  6. Step 6: Final answer
    x = 977,876,721.60

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1.5x scale

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.