Finding the Fourth Proportional to 7,133,248,328.71, 9,842,701,582.38 and 4,122,781,365.68
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Solution
The fourth proportional to 7,133,248,328.71, 9,842,701,582.38 and 4,122,781,365.68 is: 5,688,755,641.45
Step by Step Solution
- Step 1: Write the proportion equation
7,133,248,328.71 : 9,842,701,582.38 = 4,122,781,365.68 : x - Step 2: Convert to fraction form
7,133,248,328.71/9,842,701,582.38 = 4,122,781,365.68/x - Step 3: Cross multiply
7,133,248,328.71x = 9,842,701,582.38 × 4,122,781,365.68 - Step 4: Simplify right side
7,133,248,328.71x = 40,579,306,671,785,312,256 - Step 5: Solve for x
x = 40,579,306,671,785,312,256/7,133,248,328.71 - Step 6: Final answer
x = 5,688,755,641.45
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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.