Finding the Fourth Proportional to 5,778,717,805.74, 7,974,671,386.59 and 3,138,518,917.74
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Solution
The fourth proportional to 5,778,717,805.74, 7,974,671,386.59 and 3,138,518,917.74 is: 4,331,178,273.61
Step by Step Solution
- Step 1: Write the proportion equation
5,778,717,805.74 : 7,974,671,386.59 = 3,138,518,917.74 : x - Step 2: Convert to fraction form
5,778,717,805.74/7,974,671,386.59 = 3,138,518,917.74/x - Step 3: Cross multiply
5,778,717,805.74x = 7,974,671,386.59 × 3,138,518,917.74 - Step 4: Simplify right side
5,778,717,805.74x = 25,028,657,009,572,589,568 - Step 5: Solve for x
x = 25,028,657,009,572,589,568/5,778,717,805.74 - Step 6: Final answer
x = 4,331,178,273.61
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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.