Finding the Fourth Proportional to 1,369,442,970.02, 1,889,671,865.99 and 766,646,601.35
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Solution
The fourth proportional to 1,369,442,970.02, 1,889,671,865.99 and 766,646,601.35 is: 1,057,883,055.70
Step by Step Solution
- Step 1: Write the proportion equation
1,369,442,970.02 : 1,889,671,865.99 = 766,646,601.35 : x - Step 2: Convert to fraction form
1,369,442,970.02/1,889,671,865.99 = 766,646,601.35/x - Step 3: Cross multiply
1,369,442,970.02x = 1,889,671,865.99 × 766,646,601.35 - Step 4: Simplify right side
1,369,442,970.02x = 1,448,710,513,727,946,240 - Step 5: Solve for x
x = 1,448,710,513,727,946,240/1,369,442,970.02 - Step 6: Final answer
x = 1,057,883,055.70
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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.